投稿時間:2023-07-28 04:20:35 RSSフィード2023-07-28 04:00 分まとめ(26件)

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AWS	AWS Partner Network (APN) Blog	Beyond the Nastygram: Cloud FinOps for the Enterprise with Ness Digital Engineering	https://aws.amazon.com/blogs/apn/beyond-the-nastygram-cloud-finops-for-the-enterprise-with-ness-digital-engineering/	Beyond the Nastygram Cloud FinOps for the Enterprise with Ness Digital EngineeringNess Digital Engineering works with organizations to ensure AWS infrastructure supports strategic initiatives In this post we outline an approach for enterprises seeking a mechanism to align cloud costs with their business value We ll discuss various change management challenges that such efforts may encounter and share ways to address them and explore how a robust FinOps function can solve chronic issues that plague cloud cost management at large enterprises	2023-07-27 18:27:05
AWS	AWS - Webinar Channel	Your questions answered: Best practices for AWS database cost optimizations- AWS Office Hours	https://www.youtube.com/watch?v=OMph4ULTpbc	Your questions answered Best practices for AWS database cost optimizations AWS Office HoursLearn how to make the most of your AWS database spend by optimizing your database capacity decisions AWS offers several options and tools to help you make the right choices You can customize your choices along multiple dimensions like compute storage and I O cost optimization strategies the use of in memory caching using serverless databases data lifecycle management policies the use of cost monitoring and estimation tools and more Join us for this special office hours session to ask your questions and hear the answers to the most frequently asked questions about database cost optimization Learning Objectives Objective Gain a understanding of the cloud database cost components and how to minimize them Objective Characterize your workload requirement for making the best fit cost optimized choices Objective Become familiar with cost optimization tools for cost and usage monitoring pricing calculations and cost estimation To learn more about the services featured in this talk please visit To download a copy of the slide deck from this webinar visit	2023-07-27 18:36:12
技術ブログ	Developers.IO	CloudWatchアラームの通知を別のアカウントのSNSトピックに送信したい。	https://dev.classmethod.jp/articles/cloudwatchalarm-publish-snstopic-in-another-account/	acloudw	2023-07-27 18:51:44
海外TECH	MakeUseOf	How to Choose the Best Home Battery Backup	https://www.makeuseof.com/home-backup-battery-what-is-best/	backup	2023-07-27 18:45:24
海外TECH	MakeUseOf	How to Share a Wi-Fi Password From Your iPhone to Any Other Device	https://www.makeuseof.com/how-to-share-wi-fi-password-iphone/	How to Share a Wi Fi Password From Your iPhone to Any Other DeviceOn iOS you have multiple options to share a Wi Fi password depending on the device that needs to connect Here we ll teach you all the methods	2023-07-27 18:30:25
海外TECH	MakeUseOf	6 Ways to Restore Missing Windows Time Service	https://www.makeuseof.com/restore-missing-windows-time-service/	windows	2023-07-27 18:15:24
海外TECH	MakeUseOf	How to Fake Eye Contact in FaceTime on an iPhone	https://www.makeuseof.com/how-to-fake-eye-contact-facetime/	facetime	2023-07-27 18:01:23
海外TECH	DEV Community	What are your favorite coding-related podcasts?	https://dev.to/codenewbieteam/what-are-your-favorite-coding-related-podcasts-4alp	What are your favorite coding related podcasts Hey hey michaeltharrington has for a long time run a beloved series called Music Monday over here on DEV that is one of my favorite posts of the week I have always needed a good balance between music and podcasts in my rotation and as I work closely on the CodeNewbie Podcast I have gone super deep down a podcast hole I figured I might use this as an opportunity to ask for coding podcast recommendations from you all since I know so many of you have podcasts or are featured on podcasts or probably also listen to quite a few podcasts too Modeled after Music Monday drop the things you have been listening to lately and feel free to browse others suggestions Thanks for entertaining my passions I ll drop a comment to share what I have been listening to as well because this is one of my favorite things to talk about Have a great day y all Also if you re interested in having other discussions about podcasts check out our podcast tag podcast Follow Audiophiles unite Learn on the go with dev podcasts there are lots of different shows about lots of topics done in a lot of different styles so hopefully you can find some that suit your needs Follow the CodeNewbie Org and codenewbie for more discussions and online camaraderie Also check out our podcast CodeNewbie Follow The most supportive community of programmers and people learning to code Part of the DEV family	2023-07-27 18:27:20
海外TECH	DEV Community	101 JavaScript Concepts You Need to Know	https://dev.to/in/101-javascript-concepts-you-need-to-know-59h8	JavaScript Concepts You Need to Know IntroductionJavaScript is one of the most popular programming languages used in web development today It is the backbone of modern web applications and is used in a variety of contexts from front end to back end and even in mobile application development However JavaScript also has a reputation for being a quirky and sometimes difficult language to understand due to its unique blend of functional and object oriented programming characteristics In this blog post we will cover over JavaScript concepts that every developer should know VariablesIn JavaScript variables are used to store data that can be manipulated and referenced throughout your code JavaScript supports several ways of declaring variables including the var let and const keywords Understanding the differences between these declarations is crucial for writing predictable and bug free code Data TypesJavaScript has a few basic data types including Number String Boolean Object Null and Undefined Each of these types has its own set of behaviors and characteristics For instance objects in JavaScript are mutable and can be changed after they are created while numbers strings and booleans are immutable Control FlowControl flow in JavaScript refers to the order in which the computer executes statements in a script Statements like if else switch for while and do while are used to control the flow of execution in a program allowing the program to branch in different directions based on conditions and loop over code blocks FunctionsFunctions are reusable pieces of code that can be defined once and used throughout your code They can take parameters and return values In JavaScript functions are objects which means they have properties and can even be assigned to variables and passed around ScopeIn JavaScript scope refers to the accessibility or visibility of variables functions and objects in some particular part of your code during runtime JavaScript has both local scope and global scope Understanding how scope works is critical to writing effective code and avoiding potential bugs React JS Interview Questions and Answers ClosuresA closure is a JavaScript function that has access to its own scope the scope of the outer function and global variables Closures are created every time a function is created at function creation time They re a powerful feature in JavaScript that can be used for a variety of tasks including data privacy factory functions and more HoistingHoisting is a JavaScript mechanism where variables and function declarations are moved to the top of their containing scope during the compile phase Understanding hoisting will help you avoid common mistakes related to the order of your code Event LoopJavaScript has a concurrency model based on an event loop which is responsible for executing the code collecting and processing events and executing queued sub tasks This model allows JavaScript to be very efficient in handling asynchronous operations making it ideal for tasks like handling user input or fetching data from a server Promises and Async AwaitPromises are objects that represent the eventual completion or failure of an asynchronous operation They are a powerful tool for organizing and managing asynchronous code Async await is syntactic sugar on top of promises providing a more convenient and readable way to handle asynchronous code Prototypes and InheritanceJavaScript is a prototype based language and uses prototypal inheritance rather than classical inheritance Every object in JavaScript has a prototype property that points to the object it should inherit properties and methods from Understanding prototypal inheritance is fundamental to understanding how objects work in JavaScript this keywordThe this keyword in JavaScript is a complex concept that behaves differently depending on the context in which it is used It can refer to an object that owns the code of the current scope the object that a method is associated with the global object in non strict mode or other contexts depending on the way a function is called DOM ManipulationThe Document Object Model DOM is a programming interface for web documents It represents the structure of a web page and allows JavaScript to manipulate the content structure and styles of a webpage Understanding the DOM is crucial for making interactive web pages JavaScript Interview Questions and Answers Event HandlingJavaScript allows you to make web pages interactive by responding to user actions or events like clicks mouse movements key presses and more This is done using event listeners and event handlers Understanding events is key to creating dynamic and interactive user experiences AJAX and Fetch APIAJAX Asynchronous JavaScript and XML and the Fetch API are techniques used to communicate with a server and retrieve data asynchronously without refreshing the page They are essential for creating dynamic and responsive web applications Error HandlingError handling in JavaScript is done using the try catch finally blocks It helps to catch programming errors and exceptions and handle them gracefully This is crucial for building robust and resilient applications Regular ExpressionsRegular Expressions or RegEx are patterns used to match character combinations in strings In JavaScript regular expressions are also objects and can be used with methods like test and exec They are incredibly useful for tasks like form validation searching and text manipulation JSONJSON or JavaScript Object Notation is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate In JavaScript JSON is a native data type and methods like JSON parse and JSON stringify allow for easy conversion between JSON and JavaScript objects Template LiteralsTemplate literals are string literals that allow embedded expressions You can use multi line strings and string interpolation features with them They were introduced in ES and provide a more powerful and flexible way to work with strings Destructuring AssignmentThe destructuring assignment syntax is a JavaScript expression that makes it possible to unpack values from arrays or properties from objects into distinct variables This feature was also introduced in ES and provides a concise way to work with complex data structures ModulesModules in JavaScript are reusable pieces of code that can be exported from one program and imported for use in another program Modules are particularly useful for maintaining a clean and organized codebase and are a critical aspect of building scalable applications CallbacksA callback function is a function passed into another function as an argument which is then invoked inside the outer function Callbacks are a fundamental aspect of JavaScript and are central to many asynchronous operations Array MethodsJavaScript provides a wide array of methods to work with arrays These include methods to iterate over arrays like forEach map filter reduce methods to check the contents of an array every some includes and methods to manipulate arrays push pop shift unshift splice Spread and Rest OperatorsThe spread operator allows an iterable to be expanded in places where zero or more arguments or elements are expected The rest parameter syntax is used to represent an indefinite number of arguments as an array Both concepts were introduced in ES and provide a more concise and flexible way to work with arrays and function arguments Arrow FunctionsArrow functions provide a compact syntax to write functions in JavaScript They are especially handy when dealing with functions that are to be passed as callbacks or when maintaining the context of this Equality vs JavaScript provides two comparison operators and The operator will compare for equality after doing any necessary type conversions The operator will not do the conversion so if two values are not the same type will simply return false Both are incredibly important to understand as they behave differently and can lead to bugs if misunderstood Type CoercionType coercion in JavaScript refers to the automatic or implicit conversion of values from one data type to another It can occur in various situations like in comparisons in arithmetic operations or implicitly when you try to manipulate values of different types null vs undefinednull and undefined in JavaScript both represent the absence of value However they are used differently undefined typically means a variable has been declared but not defined yet null is an assignment value that represents no value or no object Truthy and Falsy ValuesIn JavaScript a truthy value is a value that is considered true when encountered in a Boolean context JavaScript uses type coercion to translate truthy or falsy values when we use them in a Boolean context All values are truthy unless they are defined as falsy i e except for false n null undefined and NaN JavaScript Engine and RuntimeJavaScript engines are used to execute JavaScript code Different browsers use different engines like V Chrome Edge SpiderMonkey Firefox and JavaScriptCore Safari A JavaScript runtime is where the code is executed and interacts with the engine and the environment like a browser or a Node js server Web Storage localStorage sessionStorageWeb storage objects localStorage and sessionStorage allow to save key value pairs in the browser localStorage stores data with no expiration date and the data is not sent back to the server sessionStorage does the same thing but persists only for as long as the window or tab is open Function Expressions vs Function DeclarationsIn JavaScript functions can be defined using function declarations or function expressions Function declarations are hoisted to the top of their scope and can be invoked before their declaration Function expressions are not hoisted and they can be anonymous or named IIFE Immediately Invoked Function Expression An Immediately Invoked Function Expression IIFE is a JavaScript function that runs as soon as it is defined It is a design pattern which is also known as a Self Executing Anonymous Function and contains two major parts the function enclosed within and the group that causes the function to be executed Higher Order FunctionsA Higher Order Function is a function that receives another function as an argument or returns a new function Higher order functions are a big part of functional programming in JavaScript and they include functions like map filter reduce and sort Pure FunctionsA Pure function is a function where the return value is only determined by its input values without observable side effects This is how functions in math work Math cos x will for the same value of x always return the same result Bitwise OperatorsJavaScript supports bitwise operators as part of the language syntax Bitwise operators perform operations at the bit level These operators are not commonly used and are usually only seen in optimized code RecursionRecursion in JavaScript is a process in which a function calls itself as a subroutine This allows the function to be used repeatedly to solve a subproblem that is part of a larger problem Recursive functions can be very effective for tasks such as traversing tree like data structures Map Set WeakMap WeakSetJavaScript ES introduced new data structures like Map Set WeakMap and WeakSet Map is a collection of keyed data items just like an Object but allows keys of any type Set is a collection of unique values WeakMap is just like Map but it doesn t prevent JavaScript from removing its items while WeakSet is a variant of Set that only holds objects and where the objects may be removed by garbage collection GeneratorsGenerators are a special kind of function that can be paused and resumed allowing other code to run in the meantime A generator looks like a function but behaves like an iterator They are defined using the function syntax SymbolsSymbols are a new primitive type introduced in ES They are completely unique identifiers Just like their primitive counterparts Number String Boolean they can be created using the factory function Symbol which returns a Symbol Iterables and IteratorsIterable is a concept from JavaScript s Symbol iterator An object is iterable if it defines its iteration behavior such as what values are looped over in a for of construct Some built in types such as Array or Map have a default iteration behavior while other types like Object do not Proxy and ReflectThe Proxy object is used to define custom behavior for fundamental operations e g property lookup assignment enumeration function invocation etc The Reflect object is similar to Proxy but it allows you to easily forward default operations to the original object Transpiling and BabelTranspiling is the process of converting source code from one language or language version to another Babel is a popular JavaScript transpiler that can transform ES and beyond code into ES code which is compatible with more environments PolyfillA polyfill is a piece of code usually JavaScript on the Web used to provide modern functionality on older browsers that do not natively support it They are a bridge that allow you to leverage APIs from newer browsers in older browsers Web WorkersWeb Workers is a simple means for web content to run scripts in background threads The worker thread can perform tasks without interfering with the user interface Workers utilize thread like message passing to achieve parallelism Service WorkersService Workers essentially act as proxy servers that sit between web applications the browser and the network when available They are intended among other things to enable the creation of effective offline experiences intercept network requests and take appropriate action based on whether the network is available WebSocketsWebSockets is a communication protocol which provides full duplex communication channels over a single TCP connection It allows real time data transfer from and to the server This protocol is used for creating real time web applications CORS Cross Origin Resource Sharing CORS is a mechanism that allows many resources e g fonts JavaScript etc on a web page to be requested from another domain outside the domain from which the resource originated It s a mechanism supported in HTML that manages XMLHttpRequest access to a domain different requestAnimationFramerequestAnimationFrame is a method that tells the browser that you wish to perform an animation and requests that the browser call a specified function to update an animation before the next repaint The Event LoopThe event loop is what allows JavaScript to be asynchronous and have non blocking I O despite the fact that JavaScript is not multi threaded It s a loop that waits for events and dispatches them when they happen Angular Interview Questions and Answers Tail Call OptimizationTail call optimization TCO is a feature in JavaScript strict mode only where if the last statement in a function is a call to a function the JavaScript engine can optimize the stack memory by clearing the current stack frame and reusing it for the next function call Typed Arrays and ArrayBuffersTyped Arrays are array like objects and provide a mechanism for accessing raw binary data ArrayBuffer objects are used to represent a generic fixed length raw binary data buffer You can t directly manipulate the contents of an ArrayBuffer instead you create one of the typed array objects or a DataView object which represents the buffer in a specific format Binary Data Blob amp File APIsJavaScript has built in support for binary data The Blob object represents a blob which is a file like object of immutable raw data they can be read as text or binary data The File API which includes the FileReader object allows web applications to read and manipulate File objects URL and Base EncodingJavaScript provides the encodeURI encodeURIComponent and btoa methods for URL and Base encoding These methods are useful when dealing with strings that need to be included in URLs or used in a context that requires Base encoded data JavaScript Design PatternsJavaScript design patterns are reusable solutions applied to commonly occurring problems in writing JavaScript web applications Some of the popular JavaScript design patterns are Module Prototype Observer and Singleton Testing Unit Tests Integration Tests and EE TestsTesting is a fundamental part of the JavaScript development process JavaScript developers typically use testing frameworks like Jest or Mocha to write unit tests tests for individual functions or components integration tests tests for code modules or services and end to end EE tests tests for user journeys across the entire application Strict ModeStrict mode is a way to opt into a restricted variant of JavaScript Adding use strict at the beginning of a file script or function will trigger the JavaScript engine to interpret the code in strict mode Strict mode can help catch some common coding errors before they are run Meta programming new target Reflect ProxyMeta programming in JavaScript involves using programs to manipulate their own structures new target Reflect and Proxy are all part of JavaScript s meta programming capabilities new target lets you detect if a function or constructor was called using the new operator Reflect is an object that provides methods for interceptable JavaScript operations and Proxy is used to define custom behavior for fundamental operations Web Assembly WASM WebAssembly often abbreviated as WASM is a binary instruction format for a stack based virtual machine It is designed as a portable target for the compilation of high level languages like C C and Rust enabling deployment on the web for client and server applications Memory Management and Garbage CollectionJavaScript abstracts most of the memory management details from the developer by providing automatic garbage collection That means that as a developer you can allocate memory i e create objects and you don t have to worry about freeing up the memory when it s no longer needed the JavaScript garbage collector will handle that Event Bubbling and CapturingEvent bubbling and capturing are two ways of event propagation in the HTML DOM API Bubbling is the event starts from the target element to upwards from the deepest target element to document object and capturing is the event starts from top to target element from the document object to the deepest target element Execution Context and StackIn JavaScript the execution context is an abstract concept that holds code that is currently running It consists of the creation and execution phases where the JavaScript engine first creates variables functions and arguments and then executes the code JavaScript uses a data structure called the Execution Stack to keep track of its execution contexts Block Binding and Block ScopeJavaScript ES introduced Block Scope which can be created with let and const These variables actually exist only within the block in which they are defined This is a different behavior compared to var which defines a variable globally or locally to an entire function regardless of block scope Function ChainingFunction chaining is a technique used for simplifying code where multiple methods are called on the same object JavaScript allows for function chaining by ensuring that all functions that are part of the chain return the object itself so the next function can be called on it MixinsA mixin is a class whose methods can be used by other classes without the need for inheritance In JavaScript mixins are a tool which allows developers to include behavior from multiple sources in a class s prototype Debouncing and Throttling TechniquesDebouncing and throttling are techniques to control how many times a function can be executed Debouncing ensures that a function is not executed again until a certain amount of time has passed without it being called Throttling ensures a function is not called more than once in a specified time period Functional ProgrammingFunctional Programming FP in JavaScript is a coding style that focuses on building the software by composing pure functions avoiding shared state mutable data and side effects JavaScript is not a functional language but it has some features of it like first class functions and closures Object Oriented Programming OOP JavaScript supports Object Oriented Programming OOP with prototypal inheritance which is a bit different from classical OOP languages like Java or C However with the introduction of classes in ES JavaScript now has a much closer resemblance to classical OOP languages CurryingCurrying is a transformation of functions that translates a function from callable as f a b c into callable as f a b c Currying doesn t call a function It just transforms it In JavaScript this can be easily done with binding Data ImmutabilityImmutability is a core principle in functional programming and it also plays a major part in working with React and Redux In JavaScript we commonly use the const keyword to prevent reassigning and methods like map filter reduce etc to prevent mutating arrays Isomorphic JavaScriptIsomorphic JavaScript also known as Universal JavaScript is code that can run both in the server and the client This has led to the ability to build apps that render full pages on the server with response to navigation but then after page load turn into Single Page Applications SPAs Single Threaded Model with Event LoopJavaScript follows a single threaded model with event loop model This model allows JavaScript to be very efficient in handling asynchronous operations and offers much greater control over how and when different parts of your program are executed JavaScript Timers setTimeout setInterval requestAnimationFrameJavaScript has several methods for scheduling and controlling the execution of code setTimeout for running code after a specified delay setInterval for running code at fixed intervals and requestAnimationFrame for running code just before the next repaint for smoother animations Real Time Communication with WebRTCWebRTC Web Real Time Communication is a technology which enables Web applications and sites to capture and optionally stream audio and or video media as well as to exchange arbitrary data between browsers without requiring an intermediary JavaScript modules import exportJavaScript has a built in module system for importing and exporting code between different files The import statement is used to import functions objects or values from another file while the export statement is used to export functions objects or values from the file they reside in Vue JS Interview Questions and Answers JavaScript SymbolsSymbols are a new primitive type in JavaScript They are unique and can be used as identifiers for object properties They can also be used to implement private properties and methods in an object JavaScript DecoratorsDecorators provide a way to add both annotations and a meta programming syntax for class declarations and members Decorators use the form expression where expression must evaluate to a function that will be called at runtime with information about the decorated declaration Error Handling throw try catch finallyError handling in JavaScript is facilitated through the use of throw try catch and finally constructs throw is used to create a custom error The try statement allows you to define a block of code to be tested for errors while it s being executed The catch statement allows you to define a block of code to be executed if an error occurs in the try block The finally statement lets you execute code after try and catch regardless of the result MemoizationMemoization is a technique of caching the results of expensive function calls and reusing the cached result when the same inputs occur again It is a powerful optimization technique that can drastically improve the performance of your JavaScript application JavaScript Engines V SpiderMonkey JavaScriptCoreJavaScript engines are programs that execute JavaScript code The most popular JavaScript engines are V Chrome and Node js SpiderMonkey Firefox and JavaScriptCore Safari JavaScript Runtime Environment Node js and BrowsersA JavaScript runtime environment is a platform that interprets JavaScript code Examples of JavaScript runtime environments include web browsers like Chrome Firefox Safari and Edge and server side environments like Node js Web APIs DOM Event FetchWeb APIs are not part of the JavaScript language per se but they are part of the larger web platform The DOM API allows JavaScript to interact with the HTML and CSS of a webpage The Event API enables JavaScript to listen and respond to browser events The Fetch API provides an interface for fetching resources across the network JavaScript Package Managers npm yarnPackage managers are tools that allow you to manage dependencies in your project npm Node Package Manager and Yarn are two popular JavaScript package managers They allow you to install update and manage external packages from the npm registry Task Runners grunt gulpTask runners in JavaScript are used to automate repetitive tasks like minification compilation unit testing and linting Grunt and Gulp are two popular JavaScript task runners Module Bundlers webpack rollup parcelModule bundlers are tools that take pieces of JavaScript and their dependencies and bundle them into a single file typically for use in the browser Webpack Rollup and Parcel are popular JavaScript module bundlers Transpilers Babel TypeScriptTranspilers take source code written in one language and produce the equivalent code in another Babel is a JavaScript compiler that can convert ECMAScript code into a backward compatible version of JavaScript that can be run by older JavaScript engines TypeScript is a typed superset of JavaScript that compiles to plain JavaScript JavaScript Testing Frameworks Jest Mocha JasmineJavaScript testing frameworks provide an automated way to ensure that your JavaScript code is working as expected Jest Mocha and Jasmine are some of the most popular JavaScript testing frameworks They provide features for structuring tests assertions mocking and more JavaScript Linting ESLint JSLint PrettierLinting tools analyze code for potential errors and enforce a certain coding style ESLint JSLint and Prettier are popular linting tools in the JavaScript ecosystem They help to maintain code consistency and prevent bugs Front End Libraries and Frameworks React Angular Vue jsFront end libraries and frameworks like React Angular and Vue js are powerful tools for building complex user interfaces in JavaScript They provide abstractions for DOM manipulation and state management making it easier to create dynamic web applications Server Side JavaScript Node js Express jsServer side JavaScript allows the use of JavaScript on the server Node js is a runtime that allows JavaScript to be run outside of the browser and Express js is a minimal web application framework for Node js Mobile Application Development React Native IonicReact Native and Ionic are popular frameworks for building mobile applications using JavaScript React Native allows you to build native mobile apps using JavaScript and React while Ionic allows you to build hybrid mobile apps with web technologies Desktop Application Development Electron NW jsElectron and NW js are popular frameworks for building desktop applications using JavaScript HTML and CSS Electron is maintained by GitHub and used in popular apps like Atom and Visual Studio Code while NW js was previously known as Node WebKit and allows you to call Node js modules directly from DOM Static Site Generators Gatsby Next jsStatic site generators like Gatsby and Next js allow you to create static HTML websites with JavaScript and modern front end tools These sites can be easily deployed and hosted and they provide better performance and security than traditional dynamic sites Headless CMS Strapi Ghost ContentfulA headless CMS is a back end content management system built as a content repository that makes content accessible via a RESTful API for display on any device Strapi Ghost and Contentful are popular headless CMS that can be used with JavaScript GraphQL Apollo RelayGraphQL is a query language for APIs and a runtime for executing those queries with your existing data Apollo and Relay are popular JavaScript libraries for working with GraphQL State Management Redux MobXRedux and MobX are libraries used for state management in JavaScript applications They help you manage global state state that is used across many components or modules Asynchronous JavaScript Callbacks Promises Async AwaitAsynchronous JavaScript refers to the use of asynchronous operations in JavaScript These operations allow JavaScript to perform other tasks while waiting for asynchronous operations to complete Callbacks Promises and Async Await are different ways to handle asynchronous operations in JavaScript JavaScript Data Structures Arrays Stack QueueJavaScript provides built in data structures like Arrays and you can easily implement other data structures like Stacks and Queues using JavaScript Understanding these data structures is crucial for solving complex problems JavaScript Algorithms Sorting SearchingSorting and searching are fundamental algorithms in computer science and JavaScript is no exception JavaScript provides built in methods for sorting arrays and searching can be performed using a variety of techniques Web Performance Minification Lazy Loading CachingImproving web performance is a crucial part of web development Techniques like minification to reduce the size of code lazy loading to delay loading resources until they are needed and caching to save and reuse frequently used data can be used to enhance the performance of a web page Accessibility ARIA Semantic HTMLAccessibility in web development means making web pages accessible to all users including those with disabilities ARIA Accessible Rich Internet Applications and Semantic HTML are tools that developers can use to improve accessibility in web pages Internationalization and LocalizationInternationalization is the process of designing and preparing your app to be usable in different languages Localization means the adaptation of a product application or document content to meet the language cultural and other requirements of a specific target market a locale Python Coding Challenges	2023-07-27 18:14:13
Apple	AppleInsider - Frontpage News	How to use FaceTime on Apple TV with Continuity Camera on iPhone	https://appleinsider.com/inside/tvos-17/tips/how-to-use-facetime-on-apple-tv-with-continuity-camera-on-iphone?utm_medium=rss	How to use FaceTime on Apple TV with Continuity Camera on iPhoneA new feature of tvOS and iOS brings FaceTime video to Apple TV K Here s how to get it set up and how it works FaceTime with an Apple TVFaceTime has been limited to devices with cameras since its inception However with advances in features like Continuity Camera that no longer has to be the case Read more	2023-07-27 18:17:07
Apple	AppleInsider - Frontpage News	Get Apple's Midnight MacBook Air M2 (16GB RAM, 1TB SSD) for $1,599, plus $40 off AppleCare	https://appleinsider.com/articles/23/07/27/get-apples-midnight-macbook-air-m2-16gb-ram-1tb-ssd-for-1599-plus-40-off-applecare?utm_medium=rss	Get Apple x s Midnight MacBook Air M GB RAM TB SSD for plus off AppleCareSave on the popular M MacBook Air with a core GPU GB of memory and TB of storage in the gorgeous Midnight finish Plus get three years of AppleCare for Save on a loaded MacBook Air To snap up the exclusive discount on the high end M MacBook Air inch simply head over to Apple Authorized Reseller Adorama and enter promo code APINSIDER during Step of checkout Step by step activation instructions can be found further down this page Read more	2023-07-27 18:12:34
海外TECH	Engadget	One of our favorite mesh WiFi systems, TP-Link's Deco, is 30 percent off	https://www.engadget.com/one-of-our-favorite-mesh-wifi-systems-tp-links-deco-is-30-percent-off-180716707.html?src=rss	One of our favorite mesh WiFi systems TP Link x s Deco is percent offMesh router systems are a great way to beef up your home s WiFi network and one of the best reviewed units out there is the TP Link s Deco XE You can now pick up this tri band system for percent off from down to For the price you get three units or nodes to place throughout the home This isn t the lowest price ever for this system but it s just more than this year s Prime Day deal So what s so special about this system It s just solid on all fronts offering an easy installation seamless integration with the three major wireless bands and connectivity with up to devices and enough coverage to handle square feet You also get three analog ports for each node totaling nine possible wired connections for gaming consoles computers and other devices that demand ultra high speeds In our round up of the best mesh wireless systems we wrote that TP Link s offering “expertly balances raw power and user friendliness As a matter of fact the only negatives we found were minor nitpicks like shorter than average power cables and an app that could use a bit more polish There s one potential downside for some consumers This system comes with three units making this the perfect set up for larger than average homes of four bedrooms or more If you live in a smaller home you probably don t need all of this mesh goodness You d be fine with one or two units depending on the size of your space These smaller packs are also on sale but just to percent off depending on which combo you go with nbsp Follow EngadgetDeals on Twitter and subscribe to the Engadget Deals newsletter for the latest tech deals and buying advice This article originally appeared on Engadget at	2023-07-27 18:07:16
海外科学	BBC News - Science & Environment	Climate change: July set to be world's warmest month on record	https://www.bbc.co.uk/news/science-environment-66322608?at_medium=RSS&at_campaign=KARANGA	month	2023-07-27 18:09:36
ニュース	BBC News - Home	Climate change: July set to be world's warmest month on record	https://www.bbc.co.uk/news/science-environment-66322608?at_medium=RSS&at_campaign=KARANGA	month	2023-07-27 18:09:36
ニュース	BBC News - Home	The Ashes 2023: Australia edge England on first day of fifth Test	https://www.bbc.co.uk/sport/cricket/66329980?at_medium=RSS&at_campaign=KARANGA	ashes	2023-07-27 18:23:47
ニュース	BBC News - Home	Jordan Henderson: Liverpool captain's Saudi Arabia move has 'tarnished his reputation' as LGBTQ+ ally	https://www.bbc.co.uk/sport/football/66324791?at_medium=RSS&at_campaign=KARANGA	Jordan Henderson Liverpool captain x s Saudi Arabia move has x tarnished his reputation x as LGBTQ allyJordan Henderson has joined Saudi Arabian side Al Ettifaq but in doing so much of the LGBTQ community has been left disappointed in him	2023-07-27 18:23:34
ニュース	BBC News - Home	The Ashes highlights: England v Australia - fifth Test, day one at The Oval	https://www.bbc.co.uk/sport/av/cricket/66330984?at_medium=RSS&at_campaign=KARANGA	ashes	2023-07-27 18:10:27
ビジネス	ダイヤモンド・オンライン - 新着記事	独身者が入るべき「医療保険」はこれだけでいい - ひとりで楽しく生きるためのお金大全	https://diamond.jp/articles/-/325632	独身者が入るべき「医療保険」はこれだけでいいひとりで楽しく生きるためのお金大全おひとりさまの老後には、現役時代には見えにくい落とし穴があるそれも踏まえた、お金老後の対策が必須です男性の人に人、女性は人に人が生涯未婚と、独身者は急増中ですが、税金や社会保険などの制度は結婚して子どもがいる人を中心に設計されており、知らずにいると独身者は損をする可能性も。	2023-07-28 03:57:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【誰でもすぐに計算できる！】1万円が当たる確率が2％の宝くじの期待値は？ - 【フルカラー図解】高校数学の基礎が150分でわかる本	https://diamond.jp/articles/-/326714	【誰でもすぐに計算できる】万円が当たる確率がの宝くじの期待値は【フルカラー図解】高校数学の基礎が分でわかる本子どもから大人まで数学を苦手とする人は非常に多いのではないでしょうか。	2023-07-28 03:54:00
ビジネス	ダイヤモンド・オンライン - 新着記事	コミュニケーションは全人類共通の課題だろ？ - 未来がヤバい日本でお金を稼ぐとっておきの方法	https://diamond.jp/articles/-/326610	コミュニケーションは全人類共通の課題だろ未来がヤバい日本でお金を稼ぐとっておきの方法「世界最速で日経新聞を解説する男セカニチ」として活動する南祐貴氏、代目バチェラーとして知られる黄皓氏、実は二人は経営者であり、年に同じくダイヤモンド社から『未来がヤバい日本でお金を稼ぐとっておきの方法』『超完璧な伝え方』という本を出版したという共通点がある。	2023-07-28 03:51:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「マウンティング癖がある子ども」親の行動に1つの共通点 - ひとりっ子の学力の伸ばし方	https://diamond.jp/articles/-/326671	自己肯定感	2023-07-28 03:48:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【韓国で70万人が読んだ勉強法の古典】4浪の末、ソウル大学を首席で合格した逆転勉強本 - 勉強が一番、簡単でした	https://diamond.jp/articles/-/326809	【韓国で万人が読んだ勉強法の古典】浪の末、ソウル大学を首席で合格した逆転勉強本勉強が一番、簡単でした韓国で長く読まれている勉強の本がある。	2023-07-28 03:42:00
ビジネス	ダイヤモンド・オンライン - 新着記事	AIと戦う人たち：生成AIに襲いかかる訴訟、ストライキ、補償要求の内容とは - 生成AI	https://diamond.jp/articles/-/326793	AIと戦う人たち生成AIに襲いかかる訴訟、ストライキ、補償要求の内容とは生成AI小林雅一氏の新著、『生成AIー「ChatGPT」を支える技術はどのようにビジネスを変え、人間の創造性を揺るがすのか』が発売された。	2023-07-28 03:39:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【ビジネス英語】「交換する、取り替える」を英語で言うと？ - 5分間英単語	https://diamond.jp/articles/-/326689	【ビジネス英語】「交換する、取り替える」を英語で言うと分間英単語「たくさん勉強したのに英語を話せない……」。	2023-07-28 03:36:00
ビジネス	ダイヤモンド・オンライン - 新着記事	入社4年で独立した会社員が 一気に資金を貯めた投資法とは？ - 10万円から始める! 小型株集中投資で１億円 【１問１答】株ドリル	https://diamond.jp/articles/-/325872	入社年で独立した会社員が一気に資金を貯めた投資法とは万円から始める小型株集中投資で億円【問答】株ドリル【大好評シリーズ万部突破】東京理科大学の大学生だったとき、夏休みの暇つぶしで突如「そうだ、投資をしよう」と思い立った。	2023-07-28 03:33:00
IT	IT号外	学生時代の友達や職場の人、昔の知り合いなど思いがけない人となぜ街中でばったり偶然会ってしまうのか	https://figreen.org/it/%e5%ad%a6%e7%94%9f%e6%99%82%e4%bb%a3%e3%81%ae%e5%8f%8b%e9%81%94%e3%82%84%e8%81%b7%e5%a0%b4%e3%81%ae%e4%ba%ba%e3%80%81%e6%98%94%e3%81%ae%e7%9f%a5%e3%82%8a%e5%90%88%e3%81%84%e3%81%aa%e3%81%a9%e6%80%9d/	学生時代の友達や職場の人、昔の知り合いなど思いがけない人となぜ街中でばったり偶然会ってしまうのか皆さんも経験があるかもしれませんが、学生時代の友達や職場の人、近所の人やちょっとした知り合いや親戚など、街中や道ばた、スーパーでばったり会ったりすれ違ったりしたことはありませんかこれって運命はたまた監視や尾行や待ち伏せされてるなど、心にひっかかったり無駄に意味や原因を考えてしまう人もいるかもしれないですね。	2023-07-27 18:22:14