投稿時間:2023-04-06 00:29:18 RSSフィード2023-04-06 00:00 分まとめ(34件)

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IT	気になる、記になる…	Apple、インド初の直営店｢Apple BKC｣を月内にオープンへ	https://taisy0.com/2023/04/05/170401.html	apple	2023-04-05 14:16:04
python	Pythonタグが付けられた新着投稿 - Qiita	【テンプレ保存】loggingによるログ出力機能【Python】	https://qiita.com/kotattsu3/items/ec11d2efa40f102ea7f9	logger	2023-04-05 23:45:15
python	Pythonタグが付けられた新着投稿 - Qiita	ChatGPTで学習させた人格に公式LINEの返答をさせてみた	https://qiita.com/ryooftennis/items/b5c2778534dbaf73ef95	chatgpt	2023-04-05 23:13:30
js	JavaScriptタグが付けられた新着投稿 - Qiita	【学習記録】JavaScript	https://qiita.com/nryokuro777/items/dd62cdaccd85caccea8c	functionun	2023-04-05 23:06:59
js	JavaScriptタグが付けられた新着投稿 - Qiita	ChatGPTとの会話を横取りして送信内容をコンソールに出力するブックマークレット	https://qiita.com/takatama/items/6d5b0839eee2c9eb93d8	chatgpt	2023-04-05 23:01:24
AWS	AWSタグが付けられた新着投稿 - Qiita	【Git】"fatal: detected dubious ownership in repository at..."というエラーが出た場合に考えられる原因と解決策	https://qiita.com/Ryo-0131/items/7f963ad57a77677ac618	dubious	2023-04-05 23:54:45
AWS	AWSタグが付けられた新着投稿 - Qiita	Athenバージョンアップ	https://qiita.com/Roux_Qiita/items/a21d9d45949ed0facf90	athen	2023-04-05 23:31:05
AWS	AWSタグが付けられた新着投稿 - Qiita	[AWS Glue]開発エンドポイントをCLIで削除する	https://qiita.com/kenryo/items/2c549b4e159f7c8be172	awsglue	2023-04-05 23:22:07
Azure	Azureタグが付けられた新着投稿 - Qiita	Azure Backup MARS エージェントにおいてエラーがでたら確認したいこと	https://qiita.com/hiro1216/items/3027c65cd8d7a4e7cf96	azurebackupmars	2023-04-05 23:28:12
Git	Gitタグが付けられた新着投稿 - Qiita	Git git commitコマンド実行後エラーが出る	https://qiita.com/miriwo/items/10553ba9a965bc5e5910	gitcommit	2023-04-05 23:55:01
Git	Gitタグが付けられた新着投稿 - Qiita	【Git】"fatal: detected dubious ownership in repository at..."というエラーが出た場合に考えられる原因と解決策	https://qiita.com/Ryo-0131/items/7f963ad57a77677ac618	dubious	2023-04-05 23:54:45
海外TECH	MakeUseOf	How to Stop Discord From Launching at Startup and Searching for Updates on Windows	https://www.makeuseof.com/windows-discord-launch-update-startup/	How to Stop Discord From Launching at Startup and Searching for Updates on WindowsOn installation Discord adds an update process to your Windows startup programs Here s how to get rid of it and reclaim your boot time once more	2023-04-05 14:15:17
海外TECH	DEV Community	Cracking Data Engineering Interview In 2023	https://dev.to/grayhat/cracking-data-engineering-interview-in-2023-376k	Cracking Data Engineering Interview In Data engineering is a field within data science that deals with designing building and maintaining the infrastructure and systems that support the collection storage processing and analysis of data Data engineers work on the technical aspects of data science creating and managing data pipelines that ensure data is accessible accurate and reliable Data engineering involves working with various data sources including structured and unstructured data and integrating them into a unified system This requires a deep understanding of database technologies data modeling ETL extract transform load processes and data warehousing Data engineers must also be skilled in programming languages such as Python Java and Scala and be familiar with technologies such as Hadoop Spark Kafka and cloud computing platforms like AWS GCP and Azure The goal of data engineering is to create a robust data infrastructure that enables data scientists and analysts to work with large complex data sets effectively Data engineers also play a critical role in ensuring the security and integrity of data implementing best practices for data governance and designing and implementing scalable systems that can accommodate changing business needs In summary data engineering is a critical component of the data science lifecycle responsible for building and managing the infrastructure that supports the collection storage processing and analysis of data Preparing for a data engineering interview can be a daunting task but with the right resources and preparation you can increase your chances of success Here is an ultimate guide to cracking a data engineering interview including technical and non technical skills sample resources and technologies to know Technical Skills SQL You should be proficient in SQL including data querying data manipulation and data modeling Python Python is widely used in data engineering so you should have a good understanding of the language including data structures functions and libraries like Pandas NumPy and SciPy Cloud Technologies Familiarize yourself with cloud technologies like AWS GCP and Azure including their services like EC S and Redshift Big Data Frameworks You should have knowledge of big data frameworks like Hadoop Spark and Kafka including their architecture data processing capabilities and use cases ETL Tools Familiarize yourself with popular ETL tools like Talend Apache Nifi and Apache Airflow including their features architecture and use cases Containerization Technologies Knowledge of containerization technologies like Docker and Kubernetes is also beneficial Non Technical Skills Communication Skills Data engineering often involves collaboration with other teams so strong communication skills are essential Problem Solving Be prepared to demonstrate your problem solving skills including identifying issues developing solutions and implementing changes Project Management Demonstrate your project management skills by highlighting your experience leading projects and meeting deadlines Attention to Detail Data engineering requires attention to detail so be prepared to demonstrate your ability to identify and correct errors Adaptability Be prepared to demonstrate your ability to adapt to changing technologies and requirements Sample Resources Data Engineering with Python by Paul Bilokon This book covers data engineering principles and best practices including data modeling ETL pipelines and workflow management Data Pipelines with Apache Airflow by Bas P Harenslak This book provides an in depth guide to Apache Airflow an open source workflow management tool used in data engineering The Data Warehouse Toolkit by Ralph Kimball This book covers data warehousing principles and best practices including dimensional modeling and ETL processes Big Data Principles and Best Practices of Scalable Real Time Data Systems by Nathan Marz and James Warren This book provides an overview of big data technologies and best practices including Hadoop Spark and Kafka Designing Data Intensive Applications by Martin Kleppmann This book covers principles and best practices for designing and building large scale data systems Technologies to Know Hadoop A framework for distributed storage and processing of large data sets Spark A fast and general purpose distributed computing engine for big data processing Kafka A distributed streaming platform that enables real time data processing Talend An open source ETL tool that enables data integration across various systems and platforms Apache Nifi An open source data integration and dataflow automation tool Docker A containerization platform that simplifies the deployment of applications In conclusion cracking a data engineering interview requires both technical and non technical skills as well as familiarity with the latest technologies and tools By leveraging the resources mentioned above and practicing your technical and non technical skills you can increase your chances of success in your next data engineering interview	2023-04-05 14:45:23
海外TECH	DEV Community	console.log is slow	https://dev.to/adam_cyclones/consolelog-is-slow-2a2b	console	2023-04-05 14:42:29
海外TECH	DEV Community	Measuring your code complexity	https://dev.to/josethz00/measuring-your-code-complexity-21jp	Measuring your code complexityWrote some code and want to know if it s good If it s testable maintainable and clean How to measure code complexity Evaluating code quality can be subjective as it often depends on individual contexts patterns and rules Time complexity and space complexity are two possible ways but writing a compiler to measure this is a challenging task Also these are metrics more focused in performance than code complexity itself So what about cyclomatic complexity   What is Cyclomatic Complexity Cyclomatic complexity is a software metric used to indicate the complexity of a program It is a quantitative measure of the number of linearly independent paths through a program s source code It was developed by Thomas J McCabe Sr in Cyclomatic complexity is computed using the control flow graph of the program the nodes of the graph correspond to indivisible groups of commands of a program and a directed edge connects two nodes if the second command might be executed immediately after the first command Cyclomatic complexity may also be applied to individual functions modules methods or classes within a program Simplifying the definitionCyclomatic complexity is a way to measure how complex a program is by counting its independent paths Independent paths include loops conditional structures and other branches in your code If a code segment can lead to a different route or deviation it s an independent path Examples include if else else if for and while Fewer independent paths make your code more readable maintainable and testable while also simplifying testing and understanding   Writing a TypeScript cyclomatic complexity analyzerLet s use the TypeScript API to write a code to analyze the cyclomatic complexity of a TypeScript function import ts from typescript import fs from fs const args process argv slice const fileToRead args const fileContent fs readFileSync fileToRead utf const tmpSourceFile ts createSourceFile tmp ts fileContent ts ScriptTarget Latest true let complexity Function to visit each node in the AST recursively param ts Node node The node to visit const visitNode node ts Node gt switch node kind case ts SyntaxKind IfStatement case ts SyntaxKind ForInStatement case ts SyntaxKind ForOfStatement case ts SyntaxKind ForStatement case ts SyntaxKind WhileStatement case ts SyntaxKind TryStatement case ts SyntaxKind CatchClause case ts SyntaxKind ConditionalExpression complexity break case ts SyntaxKind SwitchStatement const switchStmt node as ts SwitchStatement switchStmt caseBlock clauses forEach clause gt if ts isCaseClause clause handle only case clausa because it is not allowed to have a switch inside another complexity break case ts SyntaxKind BinaryExpression const binaryExpr node as ts BinaryExpression if binaryExpr operatorToken kind ts SyntaxKind AmpersandAmpersandToken binaryExpr operatorToken kind ts SyntaxKind BarBarToken if the binary expression token is AND or OR it is an assertion branch so it increases the complexity in complexity break ts forEachChild node visitNode visitNode tmpSourceFile console log complexity This code basically reads a TypeScript file and measure the cyclomatic complexity by visiting the AST nodes and adding for each independent path it finds   UsageTo run this code you just need to build the TypeScript file and run it using node For example tsc amp amp node dist main jsOr just yarn start if you are following my configuration  Current limitationsThe cyclomatic complexity analyzer presented above has some limitations Single function support The code measures cyclomatic complexity accurately only when the provided file contains a single function It won t work correctly for classes or files with multiple functions TypeScript specific The analyzer is designed for TypeScript If you use another programming language you will need to reimplement the analyzer using the appropriate language specific tools and techniques   Github repositoryTS Cyclomatic Complexity	2023-04-05 14:42:24
海外TECH	DEV Community	Understanding the Twitter Algorithm	https://dev.to/cloakd/understanding-the-twitter-algorithm-51eh	Understanding the Twitter Algorithm IntroductionTwitter recently open sourced their algorithm spilling the beans on exactly what makes for a successful tweet amp account In this article we dive into the code to understand how to optimize for engagement amp profile growth To make the most of Twitter s algorithm and enhance your online presence it s essential to understand the platform s unique scoring system and ranking factors Then by optimizing your content and interactions you can increase your visibility engagement and influence on Twitter Tweet Scoring SystemThe performance of your tweets is influenced by a scoring system that assigns point values to different interactions Retweets RTs pointsLikes pointsReplies pointHigher scores result in increased visibility and engagement Positive and Negative Impacts on Tweet PerformanceCertain factors can positively or negatively impact your tweet s performance Positive Impacts Trendy topic x increaseVideo content x increaseImage content x increaseNegative Impacts Multiple hashtags x decreaseOffensive language x decreaseUnknown language x decreaseAnything below is considered negative Therefore incorporate positive factors and avoid negative ones to optimize your tweet s performance Twitter s Profile Ranking SystemYour Twitter rank determines your visibility and is influenced by several factors RestrictionsAccount ageSuspensionsVerification statusFollowing to follower ratioTo maintain a strong profile keep these factors in check and focus on growing your follower count Optimizing Your Following to Follower RatioIf you follow more people than you have followers your profile s performance may suffer Keep the number of people you follow lower than your follower count to maintain a healthy ratio and improve your ranking Influence Analysis Based on User InteractionsYour interactions with other users determine your influence on Twitter Engaging with high quality users will improve your ranking while interacting with low quality users can negatively impact your profile Therefore be strategic with your interactions to optimize your influence Non media and Non news Links as SpamNon media and non news links are automatically marked as spam hindering your profile s performance However if a tweet generates enough engagement it will not be marked as spam Therefore exercise caution when sharing links and focus on providing valuable content to your audience Penalties for Engaging with Users Outside Your NetworkInteracting with users outside of your network such as celebrities can result in penalties from Twitter s algorithm In addition avoid engaging with users with a significantly different following to maintain your profile s credibility and ranking The Power of Verified Accounts Twitter Blue Verified accounts or Twitter Blue receive a significant boost in the platform s algorithm making the month investment worthwhile for enhancing your visibility engagement and credibility Algorithm UpdatesTwitter updates its recommendation algorithm every hours based on user suggestions so keep an eye on analytics to see which days periods are more successful amp plan content around those days Leveraging Hashtags EffectivelyUse hashtags strategically to increase your reach and participate in relevant conversations However avoid using excessive hashtags negatively impacting your tweet s performance	2023-04-05 14:38:34
海外TECH	DEV Community	GitHub Copilot for Docs – putting the “fun” into RTFM	https://dev.to/codepo8/github-copilot-for-docs-putting-the-fun-into-rtfm-3n4h	GitHub Copilot for Docs putting the “fun into RTFMAI powered chat interfaces are a great and fun way to learn about new technologies The problem is quality and relevance Chat GPT for example doesn t tell you the source of the information Bing chat does at times pull from sources that are highly successful but not necessarily the best Another thing is that it is sorely missing is a copy button for code results This is not a new problem For years I ve prepended any Google search with MDN to only get results from official documentation written by expert writers GitHub Copilot for docs is the best of both worlds It gives you an interface like ChatGPT to look up information of the official documentations of libraries products and resources Right now it covers GitHub React MDN Azure TypeScript and Webpack Once you picked a source you can add filters to change your level of expertise and how well you already know the subject You can choose to only get the answer to your question or more detail about the subject in general You can then ask your question like how do I use the fetch API and get a result that has information and code examples You can keep chatting with the system to dig deeper or you can copy the code examples to your clipboard Another thing that makes this tool great is that it gives you the source of the information You can hover over any part of the text to find out where in the documentation you can learn more on this specific topic I ve been using this tool for a few days now and I m impressed It s a great way to learn about technologies straight from the source without of having to learn the hard way what result sounds good but is actually bad advice It puts the fun into RTFM	2023-04-05 14:06:57
海外TECH	DEV Community	How To Become A Better UI/UX Designer	https://dev.to/tech_olaide/how-to-become-a-better-uiux-designer-2p5k	How To Become A Better UI UX Designer Introduction Hello there This article will show you how to get started in the field of UI UX and become a great Designer I am very excited to share my knowledge and write this blog just for you Now let us get started Who Is A Designer Indeed you can proudly call yourself a designer if you ve ever sat down with paper and a pen or perhaps a laptop and tried to design some great stuff but this article is about how we can improve as designers and differentiate ourselves from the competition So let s jump right into the interesting stuff and I ll try to keep it as simple as possible to avoid not easily understood A UI UX designer s job is to create user friendly interfaces that enable users to understand how to use complex technical products UI UX designers and software developers frequently collaborate and ensuring that they do it correctly is an important part of good software development It may be difficult for new designers to understand what the developers require of them So I am here to share some advice based on experiences Get Into Some ResearchIf your client is paying you an amount of money to design a clean website for his new Automobile business but you have no idea what an automobile website looks like you should learn more about what it is before gradually learning more about other automobile shops and drawing inspiration from the most well known ones Get inspired before starting the design process Make your design even more convincing by referencing similar competitors Explain how different is your approach and how it is better when comparing But wait be a little patient Inspirations would come up As a UI designer you must sort through ideas it is perfectly acceptable for one to be unaware of everything that a client desires or that your next project requires Fortunately we were given Google to handle such issues for us Now that you have gotten the hint that you need to get lots of cool inspirations Here are some resources that can get you boundless inspirations BehanceBehance is one of the many tools that Adobe has to help creators stand out It s somewhat like LinkedIn in the sense that you can use it to showcase your professional work and connect with others I must tell you that Being in a creative field is sometimes challenging It is impossible to be motivated every single day regardless of how much you love what you do and sometimes you will find yourself lacking inspiration but When this happens leaning on and learning from other creatives can help you reignite that spark inside you And as you might expect from a social media platform designed specifically for creators Behance is a valuable tool for achieving this DribbbleDribbble is a self promotion and social networking platform for digital designers and creatives It serves as a design portfolio platform jobs and recruiting site and is one of the largest platforms for designers to share their work online it is free for Personal Use designs themes templates and downloadable graphic elements on Dribbble MobbinA hand selected collection of the newest mobile design trends from applications that showcase the best in design is called Mobbin Obtain ideas from the platform s over patterns screenshots from iPhone and more than iOS apps all you have to do is register to save your preferred patterns There are many more similar articles on the internet these were merely my preferences So don t worry if you didn t find these to be very beneficial to you there are diverse others Let us Get Started With the Proper Tools You have been getting calls from the client asking for the mock designs right now you should use the appropriate tools to sketch out all of your ideas Now take your time and focus on your task and don t worry too much about the client as you would not want to give the client a bad design Here are some of the most popular design tools available for your consideration FigmaFigma is a vector graphics editor and prototyping tool which is primarily web based with additional offline features enabled by desktop applications for macOS and Windows or Linux and even on Chromebooks It also offers a web API and it s free The Figma Mirror companion apps for Android and iOS allow the viewing of Figma prototypes on mobile devices Here is a link to where you can find Figma easy to work on Figma Made EasySketchSketch subscriptions come with a shared Workspace so your team can do everything from designing seamlessly side by side in the same space to sharing documents with version histories with unique links for every version It excludes print design features and is mostly used for user interface and user experience design of websites and mobile apps Adobe XDAdobe Inc created and released Adobe XD a vector based user experience design tool for online and mobile applications Although there are versions for iOS and Android to help preview the outcome of work immediately on mobile devices it is only accessible for macOS and Windows these are the most commonly used tools but if you want to explore other tools here is a link to see more of the tools UI UX Tools BrandingIn general branding is significant to UI design A user interface branding design is a collection of graphics assets and visual elements such as Logo Brand colours Typography Illustrations AnimationsThey all play an important role in brand promotion and market visibility As a UI designer you must keep up with the current technologies trends and methods to grow with the skill of being creative and adaptive as well as having to work with teams ConclusionThe best tip for making your design stand out is to keep up with current trends Keeping up with trends is like listening to a million customers at once It demonstrates that you re still in the moment and acknowledges that you are still in the modern flow I know this information was at least a little bit helpful to you Now don t let anything hinder you from starting your design journey today I am rooting for you Feel free to find me around the web for questions and clarificationsTwitterLinkedIn	2023-04-05 14:00:41
Apple	AppleInsider - Frontpage News	Deals: $150 off M2 MacBook Pro, Apple Watch Milanese Loop $429, 39% off Philips Hue, more	https://appleinsider.com/articles/23/04/05/deals-150-off-m2-macbook-pro-apple-watch-milanese-loop-429-39-off-philips-hue-more?utm_medium=rss	Deals off M MacBook Pro Apple Watch Milanese Loop off Philips Hue moreToday s top bargains include off a Samsung ViewFinity FreeSync monitor off a Kindle Paperwhite Signature edition off a Corsair gaming keyboard off a Professional DJ LED light and off LG Tone Free earbuds Save on a M MacBook ProThe AppleInsider staff searches the web for amazing deals at online retailers to create a list of unbeatable bargains on popular tech items including discounts on Apple products TVs accessories and other gadgets We share the top steals to help you save money Read more	2023-04-05 14:03:10
海外TECH	Engadget	The best projectors you can buy in 2023, plus how to choose one	https://www.engadget.com/best-projectors-123004354.html?src=rss	The best projectors you can buy in plus how to choose oneHome theater projectors have come a long way from the clunky dim models of the past The latest models are brighter sharper more discreet and easier to install than ever They also deliver a picture size with image quality you could never get on a TV without spending a fortune With all that the best projectors are highly desirable for home theater buffs who want a true cinematic experience at home Over the last year we ve seen models bright enough to use in a normal room short throw models that take up very little space and have built in sound bars and better picture quality than ever with K and Dolby Vision features Better still you can now get K HDR models that can project up to a inch image for as little as That s around the same price and over double the size of a decent inch TV giving you something close to true movie theater immersion with a home theater projector There are a lot of different types of projectors though ranging from ultra short throw to portable to long throw There are also a lot of terms to understand like lens shift LCD vs DLP laser vs lamp illumination and more This guide will help you understand all that so that you can purchase the best projector for your needs within your budget The technologyHere are the basics Projectors generally use two types of technology LCD and DLP They re fundamentally different systems with their own advantages and drawbacks The rise of ultra short throw projectors and brighter long throw models meanwhile has been powered by falling prices in laser illumination technology Lasers are a far better solution than lamps because they re brighter and last far longer ーup to hours instead of That s essentially a lifetime of use about years Most projector manufacturers now use DLPs or digital light processing units manufactured nearly exclusively by Texas Instruments TI The heart of the tech is an optical semiconductor called a digital micromirror device DMD that contains millions of aluminum mirrors Those tilt either toward the light source on or away from it off at up to times per second Budget projectors like BenQ s HTi use TI s inch DMD while higher end models like the Samsung Premium LSPT use the inch chip Both use mirrors that tilt by and degrees for white and black but TI recently unveiled a new inch K capable DMD with degrees of tilt which should enhance both brightness and contrast DLP projector makers include LG Optoma LG BenQ and Panasonic The benefits of the tech are portability high contrast less fringing and cheaper projectors especially K and ultra short throw models The biggest drawback is the rainbow effect or bright red blue green artifacts that affect some viewers more than others LCD tech meanwhile uses a prism to split a light source into red green and blue beams Those then pass through LCD displays containing the image and converge via another prism before passing through the projector s lens Epson is the primary user of LCD tech along with Sony Sanyo and others LCD projectors tend to be sharper more efficient and more color accurate but have lower contrast ratios and can experience image degradation over time In general they re also more expensive What to look for in a projectorUltra short throwSince the last time we updated our guide ultra short throw projectors have become the hot new category offering several benefits You can mount them close to the wall like a TV with no need to run wires through the walls and ceiling but still get an immersive image as large as inches ーsomething that s impossible with a TV unless you re very rich They use brighter lasers that never need to be replaced ーand because laser light is collimated focusing is eliminated They re also physically less awkward to install than a ceiling mounted projector though that doesn t mean installation is super easy To get the perfect screen fit and alignment you must place them an exact height and distance from your wall or screen This can be quite a pain as I ve discovered You also need a perfectly flat wall or projector screen because ultra short throw projectors beam up at an acute angle so any imperfections will show as shadows For that reason you can t use a roll down screen because they have slight ripples For the best results particularly with a lot of ambient light you should use an ambient light rejecting ALR screen Those have small ridges that reflect light from below back to your eyes but absorb any light ie ambient light that comes from above For one of those you ll need to budget at least and way up Some projectors including models from Epson and HiSense come with ALR screens Elite Starling Brightness and contrastHome theater projectors generally range in brightness between to lumens but you ll need to take those figures with a grain of salt Some models might actually hit lumens or more but cranking the lamp to that level will hurt the image quality and lifespan of your bulb Also some manufacturers tend to exaggerate maximum brightness As a point of reference many K flat panel TVs nowadays can hit nits of brightness but the brightest consumer projectors only display between and nits from the screen That s not as big a deal as it might seem because projector images are much larger and meant to be used in dark rooms where your eyes will automatically adjust to the light and “brighten the image Contrast is also substantially different on home theater projectors Unlike OLED TVs projectors don t allow for zero black levels because of ambient light reflections and other reasons You also can t have local dimming zones found on LED TVs for true blacks Some projectors do have a dynamic iris to improve the contrast scene by scene but those can often produce a “pumping effect with the image dimming or brightening in mid scene Mounting and fan noiseA big advantage of regular long throw projectors is that you can mount the projector and screen on the ceiling using zero space in your room If you plan to do that don t forget to budget for a mounting bracket and any necessary long cables including extra power for Google s finicky Chromecast Also keep in mind that it s easier to mount a lightweight home theater projector and DLP models are usually lighter than those with LCD tech Some projectors are noisier than others and usually the more you spend the less noise you get Many of the new K DLP projectors when operating in K mode are particularly noisy There s one other cool thing if you have a portable projector or even one that is relatively easy to take down and put up you can take it outside for magical night screenings under the stars HDR and resolutionAs related to projectors these things could each take up an entire article In fact they have ーfor a deeper dive take a look at Projector Central s excellent takes on HDR and resolution On the resolution front only expensive projectors have native K resolution indeed most movie theaters still use K projectors for various reasons However there are many relatively inexpensive DLP projectors that use pixel shifting to attain K resolution That system emits each pixel four times while moving it to the correct position for a K image all in less than th of a second As such it puts as many pixels on the screen in the same amount of time as a K native projector ーand visually it performs nearly as well On the other hand Epson s LCD “K enhanced projectors also have p native resolution but the image is just shifted twice not four times So those projectors are not K natively or otherwise but do produce double the pixel count of a p projector If you really want a K native projector you ll have to pay two of the cheapest ones are Sony s VPL VWES and JVC s DLA NX HDR is a very different animal on projectors compared to TVs As mentioned projectors can t produce anywhere close to the amount of light required nits to qualify as true HDR Rather they use a technique called tone mapping to fit the entire HDR gamut into a lower brightness range For that reason among others almost all projectors only support HDR Only one uses Dolby Vision the Xiaomi Laser Cinema only available officially in China and just a couple of models work with Samsung s HDR ーand those are Samsung s own Premiere K models However most support a wider bit color gamut that allows for superior color reproduction Samsung OpticsIf you re mounting a short or long throw projector between five and feet you might need to consider the zoom range and whether the projector has a lens shift option A decent zoom range will make it easier to mount the projector where you want with the screen size that you want Lens shift meanwhile is used if the projector is mounted higher or lower relative to the screen than recommended by the manufacturer or any horizontal distance off center That creates a trapezoidal shaped image but by dialing in some lens shift you can optically square it up Otherwise you might have to use a keystone correction which digitally stretches or shrinks part of the image resulting in noticeable distortion or pixel artifacts Digital correction might not work in gaming modes either for some projector models GamingIf you re interested in a gaming projector you ll want to look up the refresh rate and input lag figures Some new projectors from Viewsonic Optoma and others offer up to Hz p refresh rates and input lag settings down to or milliseconds However some projectors designed more for home entertainment have very poor input lag and refresh rates at just Hz Portable projectorsFinally portable projectors have become popular enough to merit discussion this year They re relatively cheap compact and portable and can run on batteries making them ideal for entertainment outside or while camping These outdoor projectors are not nearly as bright as others of course but are more designed for a fun night of entertainment under the stars Engadget picksAs with previous updates I m dividing projectors into ultra short throw and long throw categories As mentioned ultra short throw models have rapidly established themselves in the market due to the extra performance and convenience and all manufacturers sell at least a couple of models Within the ultra short throw category We ll compare two price categories under and with three projectors each In the long throw category we re again looking at projectors under and with three products in each range Finally we ll take a look at the best portable projectors Best ultra short throw projectors under LG CineBeam HUQLG s nice looking HUQ is the new king of ultra short throw UST projectors due to the picture quality tech on offer and reasonable price With a hour laser light source it delivers ANSI lumens along with accurate colors across percent of the DCI P gamut enough for most HDR content And speaking of that it supports both HDR and HLG along with frame by frame tone mapping Rival models offer similar specs but the HUQ trumps them in sound and technology The watt way stereo speakers have a great sound quality on their own but you can supplement them with Bluetooth speakers from LG and nearly any other brand to create surround sound The standout feature though is LG s webOS smart TV capabilities that give you Netflix Disney Amazon Prime and other apps all with full K HDR support and surround sound including eARC output for Dolby Atmos and lossless audio It also supports HDMI and better still full K x rather than just UHD Optoma CinemaX P Steve Dent Engadget Optoma s CinemaX P made our list last year but it s one of the best projectors now because the price has dropped considerably It delivers lumen brightness impressive contrast ratio and accurate colors with percent DCI P coverage It s not quite as sharp as the pricier projectors as it uses TI s inch rather than inch DLP tech though you ll still get a near K image The CinemaX P may also better match your decor as it comes in white rather than dark grey like the P The watt NuForce Dolby Digital soundbar is one of the best on any ultra short throw projector as well On the downside it does offer apps but they re not as good as you ll find on say Google s Chromecast Buy Optoma CinemaX P at Amzon BenQ ViBenQ s first UST laser projector is at the top end of the price scale at but it offers some impressive capabilities Light output is a bright ANSI lumens and it delivers a full percent DCI P coverage for as good an HDR experience as you can get on a projector You also get a Filmmaker Mode to see colors as the directors intended It s powered by Android TV so you get all the streaming services and apps you want along with apps games and more The downside is the lack of decent speakers as it only offers dual watt speakers with clear sound but limited bass Buy BenQ Vi at Amazon Epson EpiqVision Ultra LSWIf you re okay with p projection Epson s EpiqVision Ultra LSW is a very interesting option because of the design excellent sound built in Android TV and extreme ANSI lumen brightness That allows for a wide color gamut with no rainbow effect excellent connectivity and very good sound without the need to buy a soundbar or surround sound system Best of all it s priced at just making it one of the cheaper short throw projectors out there Buy EpiqVision Ultra LSW at Amazon Best ultra short throw projectors under Samsung Premium LSPTUltra short throw projectors are a hot enough entertainment category that Samsung decided to re enter the market with two models as part of its Lifestyle TV series The LSPT is the premium model and it certainly brings some premium specs With separate red green and blue lasers it covers percent of the full Rec color range percent of DCI P ーsomething we ve rarely if ever seen on any TV or even pro monitor It delivers a very bright lumens and a ANSI contrast ratio As it uses TI s higher resolution inch DLP chip with pixel shifting you get as close as you can to true K without investing in a native K projector Finally the LSPT is the first projector on the market rated for HDR ーSamsung s answer to Dolby Vision On top of all that the LSPT delivers watts of audio using Samsung s Acoustic Beam technology while offering Samsung s well regarded Tizen powered Smart TV platform Epson EpiqVision Ultra LS Epson If you need the brightest possible image Epson s LCD powered EpiqVision Ultra LS delivers It s rated at up to lumens making it one of the brightest ultra short throw projectors in any price range It also supports HDR modes in HDR and HLG and is sold with both inch and inch ALR screens making the price effectively lower The main drawback is that it only offers double the pixels of p rather than four times like competing DLP tech It also offers a relatively weak watt built in speaker system Buy EpiqVision Ultra LS at Amazon HiSense LGThis is HiSense s new flagship UST that uses a tricolor laser to achieve high brightness ANSI lumens and an incredible percent BT HDR coverage topping even Samsung s formidable LSPT It has a powerful W Dolby Atmos sound system and built in Android TV with Google Assistant and Alexa Best of all that price includes a inch ALR Daylight screen or for an extra you can get it with a inch ALR cinema screen Buy HiSense LG at Amazon Best projectors under Viewsonic PX KThere are very few K projectors available under and Viewsonic s PX K is one of the most recent For the money it offers impressive performance You get K HDR with lumens of brightness via TI s inch DLP chip More importantly for gamers you can get a p signal at up to Hz with a millisecond input lag time The drawbacks are a limited x optical zoom so you ll need to make sure it fits in your space BenQ HTA BenQ For around the BenQ HTA is still one of the best budget p projectors It delivers where it counts with the best contrast ANSI and color accuracy in its class and is reasonably bright as well with lumens in vivid mode On top of that it comes with a x zoom and vertical lens shift option for maximum installation flexibility The drawbacks include slightly excessive fan noise rainbow effect and red tinted D Buy BenQ HTA at Amazon Optoma HDXIf you re looking to spend a little less the Optoma HDX is your best option Using DLP tech it delivers p at up to lumens with excellent brightness color accuracy contrast and black levels You also get decent millisecond input lag for gaming The drawbacks are a single HDMI port x optical zoom and poor built in audio Buy Optoma HD X at Amazon Best projectors under BenQ HTiBenQ s K HTi is an update to last year s HT but with a huge addition Android TV With that you get multi platform wireless projection from Android and iOS devices via Chromecast or Airplay ーa huge plus compared to rival projectors As before it offers reference quality K color reproduction in both HDR and SDR that s a match for projectors costing triple the price Contrast is excellent thanks to the dynamic iris though brightness is limited to lumens It has a x zoom and vertical lens shift option plus a surprisingly good built in speaker The fan noise is still present but less than before If brightness is more important than picture quality take a look at BenQ s TKi instead It also comes with Android TV but delivers far more brightness lumens in exchange for less color accurate picture quality Optoma UHD Optoma For extra brightness and speed for gaming the answer is Optoma s all new K capable UHD It cranks the lumens up to and like the Viewsonic PX K offers Hz gaming at p with one of the lowest latency figures we ve seen yet in a projector at milliseconds Otherwise you can do K Hz gaming with milliseconds of lag which is very quick for K It s optimized more for gaming than entertainment unlike BenQ s HTi but it can still handle HDR and HLG It supports both zoom albeit just x but also vertical and horizontal lens shift Buy Optoma UHD at Amazon Epson Home Cinema K ProEpson s Home Cinema K Pro is the Cadillac of under K home projectors thanks to features like lumen brightness dynamic iris and motorized zoom x focus and lens shift This Epson projector delivers in picture quality too covering percent of the DCI P color space in cinema mode with both HDR and HLG It also offers near K quality using x LCD image chips with pixel shifting The drawbacks are lack of support for Hz K due to the HDMI ports If you need that want to pay a bit less and don t care about the motorized focus Epson s Home Cinema K Pro is the way to go It offers similar features like HDR and HLG but supports K p thanks to the HDMI b ports There s no motorization and the zoom drops to x but it supports generous tilt shift and zoom ranges Buy Home Cinema K Pro at Amazon Best projectors under Epson Home Cinema LS laserFans of Epson s LCD projectors will be interested in this model which received a big update in the form of a laser light source That bumps the brightness to ANSI lumens and the three p LCDs use a pixel shifter to quadruple the resolution to something close to true K It offers very accurate colors with HDR and HLG capability but is also great for gaming thanks to the Hz refresh rate millisecond input lag and HDMI support You also get a way motorized lens scene adaptive correction and more for Optoma UHZLVOptoma s UHZLV also uses a long lasting laser light source to deliver a lumen image much brighter than any lamp powered projector It also delivers true K resolution up to p thanks to the TI inch DLP chip The extra brightness and contrast make it ideal for HDR or HLG content It also comes with desirable features for a long throw laser projector like a x zoom and vertical lens shift Buy Optoma UHZLV at B amp H LG CineBeam HUPW K LG Speaking of long throw laser projectors LG s CineBeam HUPW is another excellent pick at a much lower price point There are some compromises as the laser light pushes out a lower lumens that s still a lot and it has a smaller inch DLP chip that delivers slightly lower perceived resolution However it has dual blue and green lasers which help it deliver accurate HDR colors with an excellent percent DCI P coverage It also offers a x zoom with lens shift and an HDMI port that allows for K at p with up to bit color depth It comes with LG s webOS so it supports Amazon Prime Netflix Hulu and other streaming services without the need for a dongle Buy CineBeam HUPW K at Amazon Sony VPL VWESIf you re looking for a true native K projector Sony s VPL VWES is the least costly option out there It s by far the sharpest K projector in this roundup thanks to Sony s proprietary K SXRD native DCI K x panels It also delivers extremely accurate colors with percent DCI P coverage and HDR HLG support You also get niceties like a zoom lens with powered zoom lens shift and focus The main drawback is a relatively dim lumen brightness but it s a top pick if picture quality is paramount above all Buy Sony VPL VWES at Amazon Best budget portable projectorsXgimi MoGo ProXgimi is a relatively new brand but has started to gain traction thanks to its lineup of portable projectors The best mini projector is the MoGo Pro which can be powered by a battery with two hours of playtime and is small enough to fit in a backpack But this mini projector still delivers a detailed and reasonably accurate p image while offering automatic focus and vertical keystone adjustment It even comes with Android TV giving you all the streaming options you can need all for BenQ GSBenQThis model is designed specifically for outdoor entertainment so it s battery powered and splash and shock resistant making it a good choice for backyard movies or sports events camping and more It s also one of the brightest portable projectors out there It only delivers p resolution but it does come with a streaming app in the form of Aptoide TV Buy BenQ GS at Amazon Anker Nebula Solar HDThis p projector has a pretty rich feature set considering the price including a battery This portable projector delivers lumens for reasonably bright outdoor use has a reasonably powerful xW speaker system with Dolby Digital Plus comes with Android TV and has a built in stand for easy adjustment Buy Anker Nebular Solar HD at Amazon FAQsAre K projectors better Yes because higher resolution is more noticeable on larger screens so K is particularly useful with projectors since they beam images up to inches in size That being said brightness and contrast are more important Is a projector better than a TV Projectors can provide a more immersive experience thanks to the large screen but they re not necessarily “better Since you usually have to dim the lights with a projector TVs are superior for everyday use Is lumens bright enough for a projector Yes lumens is easily bright enough even with some ambient light in the room However the image will still be hard to see with the windows open on a bright day Should I get a K or p projector That depends on your budget and needs If your budget is below look for a p projector with the best brightness and contrast Between you ll need to weigh whether brightness or K resolution is most important Above that choose the brightest K projector you can afford What are the best projectors in daylight The best projectors in daylight are ultra short throw UST models as they have the brightest and sharpest image However they generally cost more than This article originally appeared on Engadget at	2023-04-05 14:30:20
海外TECH	Engadget	Cash App creator Bob Lee reportedly killed in San Francisco stabbing	https://www.engadget.com/cash-app-creator-bob-lee-reportedly-killed-in-san-francisco-stabbing-140418685.html?src=rss	Cash App creator Bob Lee reportedly killed in San Francisco stabbingBob Lee the creator of Cash App and a former Square executive was stabbed to death in San Francisco early Tuesday according to reports The San Francisco Police Department said a year old sustained quot apparent stab wounds quot and died after being taken to hospital The perpetrator is still at large Lee most recently worked at crypto startup MobileCoin as chief product officer and his death was confirmed by the company s CEO Joshua Goldbard “Bob was a force of nature Helped to birth Android and CashApp into our world Goldbard told Bloomberg “Moby was his dream a privacy protecting wallet for the st century I will miss him every day Jack Dorsey CEO of Square parent Block wrote on Nostr that Lee s death was quot real Getting calls Heartbreaking Bob was instrumental to Square and Cash App quot Lee worked on Android s core library development in the early years of the mobile operating system as TechCrunch notes He then moved to Square to work on the company s Android app before becoming chief technical officer and creating Cash App Lee was also a startup investor and helped the World Health Organization with its mobile app after the COVID pandemic took hold This article originally appeared on Engadget at	2023-04-05 14:04:18
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