投稿時間:2023-02-06 00:23:34 RSSフィード2023-02-06 00:00 分まとめ(25件)

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IT	気になる、記になる…	｢Mac Studio｣のモデルチェンジは当面なさそう	https://taisy0.com/2023/02/05/168120.html	apple	2023-02-05 14:45:13
AWS	lambdaタグが付けられた新着投稿 - Qiita	REST APIでDynamoDBのテーブルを操作	https://qiita.com/ayumu__/items/703c4bd9ca2e0e92e623	apigateway	2023-02-05 23:20:20
python	Pythonタグが付けられた新着投稿 - Qiita	Python学習、残り日数計算	https://qiita.com/kmd-H/items/611215a7d253e95d1b0e	youtube	2023-02-05 23:57:59
python	Pythonタグが付けられた新着投稿 - Qiita	[Python] flet.colorsで簡便に利用できる色の一覧	https://qiita.com/obukhov/items/9419105c0b810fccad09	bgcolor	2023-02-05 23:41:58
python	Pythonタグが付けられた新着投稿 - Qiita	周期表をlistにしてまとめてみたよfor python	https://qiita.com/chemweb000/items/83efb778cfdfe6d63ab4	rpython	2023-02-05 23:19:07
js	JavaScriptタグが付けられた新着投稿 - Qiita	React Hook FormでuseFieldArrayの初期化方法を間違っていた話。appendやreplaceなどは使わずにdefaultValuesで行う。	https://qiita.com/ham0215/items/62f1479a5c1aa8ab64ab	append	2023-02-05 23:48:28
js	JavaScriptタグが付けられた新着投稿 - Qiita	WordpressでAjaxにて投稿記事を取得する際にfetchを使ってダウンロードの進行状況（progress）を取得する方法	https://qiita.com/soundweaver/items/16dbbebe4edb753394a0	fetch	2023-02-05 23:43:35
AWS	AWSタグが付けられた新着投稿 - Qiita	REST APIでDynamoDBのテーブルを操作	https://qiita.com/ayumu__/items/703c4bd9ca2e0e92e623	apigateway	2023-02-05 23:20:20
AWS	AWSタグが付けられた新着投稿 - Qiita	CloudFront+S3+Route53の構成で「wwwあり・なし」のドメインを運用する時の設定	https://qiita.com/fujitahiroshi/items/03a80c14d374d47ac775	cloudfront	2023-02-05 23:11:32
Linux	CentOSタグが付けられた新着投稿 - Qiita	Apache HTTP Sever（Webサーバ）とApache Tomcat（APサーバ）の環境構築を行い、連携させる。	https://qiita.com/ts9130/items/d9d341939eae23b1fd1f	apachehttpseverweb	2023-02-05 23:32:16
Git	Gitタグが付けられた新着投稿 - Qiita	GitとGithubについて初心者が学んだことと基本コマンドシート	https://qiita.com/ZawaP/items/dc11dcfe0943d1f8d61d	github	2023-02-05 23:41:24
Ruby	Railsタグが付けられた新着投稿 - Qiita	モジュールバンドラとは	https://qiita.com/Az2Ar/items/473deffb45f20252910d	誤り	2023-02-05 23:03:25
技術ブログ	Developers.IO	FlutterアプリをAndroidエミュレーターおよび実機で実行してみた	https://dev.classmethod.jp/articles/android-flutter-apk/	developer	2023-02-05 14:17:58
海外TECH	MakeUseOf	Use the Monica PRM on Raspberry Pi to Manage Your Personal Relationships	https://www.makeuseof.com/raspberry-pi-monica-personal-relationship-manager/	Use the Monica PRM on Raspberry Pi to Manage Your Personal RelationshipsAvoid embarrassing social errors by logging details of personal relationships in the Monica PRM database on your Raspberry Pi server	2023-02-05 14:30:15
海外TECH	MakeUseOf	The Evolution of Facebook: From 2004 to Meta	https://www.makeuseof.com/evolution-of-facebook/	decades	2023-02-05 14:05:15
海外TECH	DEV Community	Subtract days from a date in JavaScript without a library	https://dev.to/lavary/subtract-days-from-a-date-in-javascript-without-a-library-3bl2	Subtract days from a date in JavaScript without a libraryUpdate This post was originally published on my blog decodingweb dev where you can read the latest version for a user experience reza How do you subtract days from a date in JavaScript To subtract a few days from a date in JavaScript you need to use setDate on a Date object and decrement the current day of the month returned by getDate by one or more days You can do it in three steps Get the day of the month by the Date prototype getDate methodTake one or more days from the getDate returned valueUse Date prototype setDate to update the objectFor instance to get the date days ago in JavaScript Get the current dateconst currentDate new Date Instantiate another date object to avoid mutating the current date objectconst pastDate new Date currentDate pastDate setDate pastDate getDate console log futureDate In the above example we instantiate the pastDate off the currentDate for two reasons To avoid mutating the original date object currentDate in this case To guarantee we subtract the days from a date object identical to the originalThe getDate method returns the day of the month of the date object on which it s called The return value is an integer number between and Next we subtract from the value returned by getDate and pass it to setDate to save the result The Date object works smartly when modifying the days If the result is outside the acceptable range for the respective month setDate will update the Date object accordingly For instance if it s November st and we take days from it the result would be October th Create a helper function to add days to a specific dateTo make this functionality reusable you can create a helper function that accepts a date and an arbitrary number of days to subtract function subtractDaysFromDate currentDate daysToSubtract daysToSubtract daysToSubtract Instantiate a new object based on the current Date const pastDate new Date currentDate Subtract the number of days pastDate setDate pastDate getDate daysToSubtract return pastDate So to subtract days from a date object console log subtractDaysFromDate new Date expected output Sat Oct GMT Western European Summer Time You can also add days to specific date using the same logic For instance days from today All you need to do is to replace the operator with the operator And that s how you can subtract days from a date in JavaScript without a library I hope you found this guide helpful Thanks for reading ️You might like Cannot find module error in Node js Fixed TypeError map is not a function in JavaScript in JavaScript Fixed Add commas to numbers in JavaScript Explained with examples SyntaxError Unexpected end of JSON input in JavaScript Fixed How to fix ReferenceError document is not defined in JavaScript	2023-02-05 14:40:05
海外TECH	DEV Community	Run self-hosted GitHub runners on GitHub Codespaces (Video Tutorial)	https://dev.to/pwd9000/run-self-hosted-github-runners-on-github-codespaces-video-tutorial-1ggh	Run self hosted GitHub runners on GitHub Codespaces Video Tutorial OverviewBased on a previous blog post this devcontainer is now publicly available as a template for anyone to use at Dev Container Templates and integrated with publicly available Codespace images Check out the repo and documentation Video Tutorial AuthorLike share follow me on GitHub Twitter LinkedIn Marcel LFollow Microsoft DevOps MVP Cloud Solutions amp DevOps Architect Technical speaker focused on Microsoft technologies IaC and automation in Azure Find me on GitHub	2023-02-05 14:35:57
海外TECH	DEV Community	Get the day of the week in JavaScript without a library	https://dev.to/lavary/get-the-day-of-the-week-in-javascript-without-a-library-3mj3	Get the day of the week in JavaScript without a libraryUpdate This post was originally published on my blog decodingweb dev where you can read the latest version for a user experience reza How would you get the day of the week in JavaScript If you need to get the day of the week in JavaScript you can do so with the standard Date object methods without using a third party library The Date object can give us the day of the week in the following formats Numerical with getDay Full name with toLocaleDateString Using Date prototype getDay The getDay method returns the day of the week for the specified date according to the local time The return value of getDay is an integer number between and The number is for Sunday for Monday and so on Please note getDay is different than getDate which is used to get the day of the month Let s see some examples Get todayconst today new Date getDay Saturday Get the Christmas day const christmasDay new Date getDay Sunday You might need the full name of a day e g Sunday rather than a number In that case you should use the toLocaleDateString method instead Using the Date prototype toLocaleDateString The toLocaleDateString method uses the Internationalization API under the hood to provide language sensitive date formatting All you need to do is to provide the locale e g en EN for English and specify the weekday format in its options parameters const today new Date toLocaleDateString en EN weekday long Example output SaturdayThe weekday option takes other values as well including short and narrow const today new Date console log today toLocaleDateString en EN weekday short Example output Sun Or use narrow for displaying days on calendars ️console log today toLocaleDateString en EN weekday narrow Example output SChanging the locale will give you the day s name in the respective language For instance to get today in German you can do like so const today new Date toLocaleDateString de DE weekday long console log today Example output SamstagYou can also get the day of a specified date For instance to get the day of Christmas const lastChristmasDay new Date toLocaleDateString en EN weekday long console log lastChristmasDay Expected output Saturday You can even figure out what day you were born If you were born on the st of October you were born on a Monday Birthday const birthday new Date console log birthday toLocaleDateString en EN weekday long output Monday Make a reusable function to get the day of the week in JavaScriptTo make the above functionality reusable you can extend the Date prototype It s similar to the above approach but it ll save you a few keystrokes Let s see how we can do it Date prototype getDayAsString function locale en EN userOptions Override default options with user options const options weekday long userOptions return this toLocaleDateString locale options Now you can call it on any date object like so const today new Date console log today getDayAsString console log today getDayAsString de DE weekday long Alright I think that does it I hope you found this guide helpful Thanks for reading ️You might like Convert a dd mm yyyy string to a Date object in JavaScriptSubtract days from a date in JavaScript without a libraryHow to add days to a date in JavaScript without a library How to get yesterday s date in JavaScript without a libraryAdd commas to numbers in JavaScript Explained with examples	2023-02-05 14:14:10
海外TECH	DEV Community	Insertion Sort (Python Algorithms)	https://dev.to/cleancodestudio/insertion-sort-python-algorithms-4cob	Insertion Sort Python Algorithms Insertion sort is a simple sorting algorithm that builds the final sorted array or list one item at a time It is much less efficient on large lists than more advanced algorithms such as quicksort heapsort or merge sort def insertion sort arr for i in range len arr key arr i j i while j gt and key lt arr j arr j arr j j arr j key return arrThe time complexity of insertion sort is O n Python AlgorithmsSorting AlgorithmsInsertion Sorting AlgorithmPython Insertion Sorting Algorithm	2023-02-05 14:12:53
海外TECH	DEV Community	Bubble Sort (Python Algorithms)	https://dev.to/cleancodestudio/bubble-sort-python-algorithms-3fng	Bubble Sort Python Algorithms Bubble sort is a simple sorting algorithm that repeatedly steps through the list compares adjacent elements and swaps them if they are in the wrong order The algorithm gets its name from the way smaller elements bubble to the top of the list def bubble sort arr n len arr for i in range n for j in range n i if arr j gt arr j arr j arr j arr j arr j return arrThe time complexity of bubble sort is O n Clean Code Studio Python Algorithms	2023-02-05 14:04:40
海外TECH	DEV Community	JavaScript double exclamation mark explained (with examples)	https://dev.to/lavary/javascript-double-exclamation-mark-explained-with-examples-pp8	JavaScript double exclamation mark explained with examples Update This post was originally published on my blog decodingweb dev where you can read the latest version for a user experience reza What are those double not operators in JavaScript You might have noticed a double exclamation mark in JavaScript code and you may be curious what that means First “double exclamation mark a k a the “double bang isn t an operator itself It s two logical not operators used twice Long story short some developers use double Not operators to explicitly convert the operand s data type to boolean true or false The operand will be converted to false if its current value is falsy and true in case it s truthy In JavaScript a falsy value can be either of the following false empty string nullundefinedNaNThese none boolean values are considered false when used in a boolean context For instance when you use a falsy value as an if condition it ll bypass the if block let logged in null This block isn t executedif logged in Do something here logged in This block isn t executedif logged in Do something error By using you can convert a non boolean value to a boolean based on its current value Here are some examples Falsy values will all be falseconsole log null falseconsole log falseconsole log undefined falseNeedless to say anything that s not falsy is truthy Truthy valuesconsole log dwd trueconsole log trueJavaScript double exclamation mark can be used in any expression let logged in if logged in true Do something here In the above code we re checking the boolean equivalent of logged in and don t care about the actual value The value is truthy so logged in will return true You can achieve the same results by using the Boolean constructor without using the new keyword let logged in if Boolean logged in true Do something here But do we need this confusing technique in the first place When do you need to use the JavaScript double exclamation mark syntax If you ask me you d be fine without double Not operators Let s get a bit deeper JavaScript unlike TypeScript doesn t have static typing But as a weakly typed language it does type coercion automatically whenever needed What is type coercion You may ask All primitive values in JavaScript are one of these types UndefinedNullNumberStringBooleanBigIntSymbolNAN Not a number Type coercion is the automatic or implicit conversion of a value from one data type to another for instance from a string to a number done at JavaScript s discretion Here s an example let a console log a output In the above example the variable a contains a string value When we multiply it by JavaScript casts it to a number automatically The result confirms that Here s another one let a let b console log a b output In the above example we have a sum expression This time JavaScript chose to cast the numeric value into a string So instead of we got the concatenation of and Even if we compare and with the equality operator we ll get true meaning they are equal even though one is a string and one is a number console log output trueThese quick experiments prove JavaScript converts data types in certain contexts To avoid unexpected behaviors it s advised to use the strict equality operator over the normal equality operator in comparisons The strict equality operator returns true only if both operands are equal and of the same type This is where you might want to use the double exclamation sign or the Boolean constructor let logged in if logged in true Do something here This might seem totally unnecessary though You could use the short form without explicitly casting it to a boolean data type let logged in if logged in Do something here This will give you the exact same result However if you have a good reason to compare the values with an ESLint friendly fashion known as the eqeqeq rule you can convert them to their boolean equivalent before comparing them with All right I think that does it I hope you found this quick guide helpful Thanks for reading ️You might like Javascript if else shorthand explained with common uses cases How to check if an element exists in JavaScript with examples JavaScript isset Equivalent methods Integer division in JavaScript explained	2023-02-05 14:01:01
Apple	AppleInsider - Frontpage News	New Pro-beating iPhone Ultra model could arrive by 2024	https://appleinsider.com/articles/23/02/05/new-pro-beating-iphone-ultra-model-could-arrive-by-2024?utm_medium=rss	New Pro beating iPhone Ultra model could arrive by Apple is thinking about extending the Pro line of iPhone models by an additional option with a report insisting a rumored powerful addition could arrive in An iPhone Ultra could be on the wayRumors since the middle of have put forward the notion that Apple could rebrand the iPhone Pro Max as the Ultra model as part of a bigger upgrade cycle If one report is to be believed Apple may save the Ultra name for an entirely new model instead Read more	2023-02-05 14:36:52
ニュース	BBC News - Home	Vile theories hurt missing mum's family, says friend	https://www.bbc.co.uk/news/uk-england-lancashire-64529251?at_medium=RSS&at_campaign=KARANGA	abuse	2023-02-05 14:23:54
ニュース	BBC News - Home	Truss's tax cuts clearly wrong approach, says Shapps	https://www.bbc.co.uk/news/uk-64530150?at_medium=RSS&at_campaign=KARANGA	cabinet	2023-02-05 14:11:05
ニュース	BBC News - Home	Situation in east Ukraine getting tougher, says Zelensky	https://www.bbc.co.uk/news/world-europe-64528580?at_medium=RSS&at_campaign=KARANGA	country	2023-02-05 14:25:55