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Declutter your JavaScript & TypeScript projects
Knip finds and fixes unused dependencies, exports and files. Use it for enhanced code and dependency management. Advanced analysis starting from fine-grained entry points based on the actual frameworks and tooling in (mono)repos for accurate and actionable results.
yamadar 2024/11/21
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Open source hooliganism and the TypeScript meltdown
September 7, 2023 Open source hooliganism and the TypeScript meltdown I've seen a lot of true believers argue for virtues of their favorite paradigms and methods over the decades working in software. And mostly, I look at people with a passionate preference and smile. Isn't it great that people care so much about their craft that they volunteer to extol the benefits of their favorite tools! Yes it
yamadar 2023/09/08
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My new error...
2023 å¹´åº¦ã®åƒ•ã®ã‚¨ãƒ©ãƒ¼ãƒãƒ³ãƒ‰ãƒªãƒ³ã‚° ã«ã¤ã„ã¦æ›¸ããŸã„ã€‚ æ˜¨æ—¥Safe Data Fetching in Modern JavaScriptã‚’èªã‚“ã§ã„ã¦ã€fetch ã«é™ã£ãŸè©±ã§ã¯ãªã„ãŒä¸€å®¶è¨€ã‚ã‚‹å†…å®¹ã ã£ãŸã®ã§æ›¸ããŸããªã£ãŸã€‚ ãŠãã‚‰ãã‚„ã‚Šã™ãŽã ã¨ã‹éžåŠ¹çŽ‡ã¨è¨€ã‚ã‚Œã‚‹ç‚¹ã¯ã‚ã‚‹ã¨æ€ã†ã®ã§ã€ã¿ã‚“ãªã®ä¸€å®¶è¨€ã‚‚æ•™ãˆã¦æ¬²ã—ã„ã€‚ å¯¾è±¡ã¯ Typescript ã§ã® ã‚µãƒ¼ãƒãƒ¼é–‹ç™ºæƒ³å®šã ãŒã€TS ã§ã‚ã‚Œã°ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆé–‹ç™ºã«ã‚‚ã»ã¨ã‚“ã©ã«å½“ã¦ã¯ã¾ã‚‹è©±ã ã¨æ€ã†ã€‚ ä¾‹å¤–ã®ã‚¹ãƒãƒ¼ã§ã¯ãªã Result åž‹ã‚’ä½¿ã† Result ã¯å¤±æ•—ã™ã‚‹ã‹ã‚‚ã—ã‚Œãªã„ã¨ã„ã†æ–‡è„ˆã‚’ä¸Žãˆã¦ãã‚Œã‚‹åž‹ ã‚¨ãƒ©ãƒ¼ãƒãƒ³ãƒ‰ãƒªãƒ³ã‚°ã®æˆ¦ç•¥ã¨ã—ã¦ä¾‹å¤–ã‚’æŠ•ã’ã‚‹ã®ã§ã¯ãªãã€Result åž‹ã‚’è¿”ã™ã‚„ã‚Šæ–¹ãŒã‚ã‚‹ã€‚ Result åž‹ã¨ã„ã†ã®ã¯ export type Result<T, E> = Ok<T> | Err<E>; export interface Ok
yamadar 2023/01/19
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JavaScript ã® undefined ã¨ null ã‚’å®Œå…¨ã«ç†è§£ã™ã‚‹
JavaScript ã§é »å‡ºã™ã‚‹ undefined ã¨ null ã«ã¤ã„ã¦èªžã‚Šã¾ã™ã€‚ è¨€èªžä»•æ§˜ä¸Šã®é•ã„ JavaScript (ECMAScript) ã«ãŠã„ã¦ã€ä»•æ§˜ä¸Š undefined ã¨ null ã¯å½“ç„¶ãªãŒã‚‰æ˜Žç¢ºã«åŒºåˆ¥ã•ã‚Œã¦ã„ã¾ã™ã€‚ã„ãã¤ã‹è¨€èªžä»•æ§˜ä¸Šã®æ‰±ã„ã«ã¤ã„ã¦æŒ™ã’ã¦ã¿ã¾ã™ã€‚ æ¯”è¼ƒ åŽ³å¯†ãªæ¯”è¼ƒæ¼”ç®—å === ã«ãŠã„ã¦ undefined ã¨ null ã¯åŒºåˆ¥ã•ã‚Œã¾ã™ã€‚ã‚†ã‚‹ã„æ¯”è¼ƒæ¼”ç®—å == ã«ãŠã„ã¦ã¯ä¸¡è€…ã¯åŒºåˆ¥ã•ã‚Œã¾ã›ã‚“ï¼ˆä»•æ§˜ 7.2.14ï¼‰ã€‚ console.log(undefined === null); // false console.log(undefined == null); // true
yamadar 2022/10/17
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2022å¹´ç§‹ç‰ˆã€€æœ€æ–°React/Typescripté–‹ç™ºç’°å¢ƒã®ä½œæˆ - Qiita
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yamadar 2022/10/11
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JavaScriptã§ã‚«ã‚¹ã‚¿ãƒ ä¾‹å¤–ã‚¯ãƒ©ã‚¹ã‚’ä½œã‚ŠãŸã„ãªã¨æ€ã£ãŸã‚‰ã€ ã‚ã‚“ã©ã†ã ã£ãŸã®ã§ã€ãã®æ™‚èª¿ã¹ãŸã¨ãã®å‚™å¿˜éŒ²ã€‚ ä»¥ä¸‹ãŒã™ã”ãå‚è€ƒã«ãªã£ãŸ(Â´Ï‰ï½€) ãƒ»ä¾‹å¤–å‡¦ç† â€” ä»•äº‹ã§ã™ãã«ä½¿ãˆã‚‹TypeScript ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆ ã‚«ã‚¹ã‚¿ãƒ ä¾‹å¤– ã“ã‚“ãªæ„Ÿã˜ã€‚ export class CustomError extends Error { constructor(e?: string) { super(e); this.name = new.target.name; // Maintains proper stack trace for where our error was thrown (only available on V8) if (Error.captureStackTrace) { Error.captureStackTrace(this, this.constructor); } //
yamadar 2022/08/16
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JavaScriptã®ES2023ãƒ»ES2022ã®æ–°æ©Ÿèƒ½ã¾ã¨ã‚ - ICS MEDIA
JavaScriptã®ä»•æ§˜ã§ã‚ã‚‹ECMAScriptã¯Ecma Internationalã«ã‚ˆã£ã¦å®šã‚ã‚‰ã‚Œã¦ã„ã¾ã™ã€‚ECMAScript 2015ï¼ˆES6ï¼‰ã®ç™»å ´ä»¥é™ã¯ã€ECMAScript 2016ã€ECMAScript 2017ï½¥ï½¥ï½¥ã¨ã€å¹´æ¬¡ã§ä»•æ§˜ãŒæ›´æ–°ã•ã‚Œã¦ã„ã¾ã™ã€‚ECMAScript 2022ï¼ˆES2022ï¼‰ã¯2022å¹´6æœˆ22æ—¥ã®Ecma Internationalã®GA 123rd meetingã«ã¦ã€ECMAScript 2023ï¼ˆES2023ï¼‰ã¯2023å¹´6æœˆ27æ—¥ã®GA 125th meetingã§æ‰¿èªã•ã‚Œã¾ã—ãŸã€‚ ES2022ã¨ES2023ã¯ã™ã§ã«å¤šãã®ãƒ–ãƒ©ã‚¦ã‚¶ã‚„Node.jsç’°å¢ƒã§åˆ©ç”¨å¯èƒ½ã§ã™ã€‚æœ¬è¨˜äº‹ã§ã¯æ–°ä»•æ§˜ã¨ä½¿ã„ã©ã“ã‚ã‚’ç´¹ä»‹ã—ã¾ã™ã€‚ ES2023 - é…åˆ—ã®éžç ´å£Šæ“ä½œ ES2023ã§ã¯é…åˆ—ã‚’éžç ´å£Šã§æ“ä½œã§ãã‚‹ãƒ¡ã‚½ãƒƒãƒ‰ãŒè¿½åŠ ã•ã‚Œã¦ã„ã¾ã™ã€‚éžç ´å£Šã¨ã¯ã€å…ƒã®é…åˆ—ã‚’å¤‰æ›´ã›
yamadar 2022/06/11
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State of JS 2020
As crappy as 2020 was, JavaScript as a whole still managed to somehow move forward. As the language itself keeps improving thanks to new features like Optional Chaining and Nullish Coalescing, TypeScript's widespread adoption is taking things to a whole other level by popularizing static typing. And on the framework side, just when we thought things were settling down, Svelte comes in and shakes e
yamadar 2022/06/06
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The State of JS 2021
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yamadar 2022/06/06
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yamadar 2021/03/22
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Google TypeScript Style Guide
// Good: choose between two options as appropriate (see below). import * as ng from '@angular/core'; import {Foo} from './foo'; // Only when needed: default imports. import Button from 'Button'; // Sometimes needed to import libraries for their side effects: import 'jasmine'; import '@polymer/paper-button'; Import paths TypeScript code must use paths to import other TypeScript code. Paths may be r
yamadar 2021/02/17
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Effective TypeScript â€º The Golden Rule of Generics
The New TypeScript Handbook has some real gems in it. Here's what it has to say about generics: Writing generic functions is fun, and it can be easy to get carried away with type parameters. Having too many type parameters or using constraints where they aren't needed can make inference less successful, frustrating callers of your function. It goes on to offer a few specific pieces of advice about
yamadar 2020/08/16
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Denoã®ç™»å ´ã§Node.jsã®æ™‚ä»£ã¯çµ‚ã‚ã‚‹ã®ã‹ï¼Ÿ - Qiita
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yamadar 2020/05/21
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yamadar 2020/05/21
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