Zhentiw - 博客园

2024年11月4日

[Memory Leak] 2. Last focused input/textarea element cause memory leak in Chrome

摘要： Example Code: <body> <div> <button class="btn" onclick="createInput(false)"> Button1</button> <button class="btn" onclick="createInput(true)">Button2< 阅读全文

posted @ 2024-11-04 15:26 Zhentiw 阅读(28) 评论(0) 推荐(0)

[Memory Leak] 1. console.log cause memory leak

摘要： Example code: <template> <button @click="handleClick">Hello, Vue-CLI</button> </template> <script> export default { methods: { handleClick() { const a 阅读全文

posted @ 2024-11-04 15:13 Zhentiw 阅读(38) 评论(0) 推荐(0)

2024年10月28日

[Node.js] Efficient File Processing in Node.js with Async Generators and Array.fromAsync

摘要： Using the Node.js glob function as a practical example, you'll learn how Array.fromAsync facilitates the creation of arrays from asynchronous iterable 阅读全文

posted @ 2024-10-28 15:43 Zhentiw 阅读(12) 评论(0) 推荐(0)

[Tools] Use pnpm as a Node.js version manager

摘要： Let's say for the laptop, default node version is 20.17.0, if you want the project to use 20.18.0with pnpm, you can do // use node 20.18.0 pnpm env us 阅读全文

posted @ 2024-10-28 15:28 Zhentiw 阅读(44) 评论(0) 推荐(0)

2024年10月22日

[Vue] useComputed

摘要： import {computed} from "vue" export function useComputed(fn) { const map = new Map() return function(...args) { const key = JSON.stringify(args); if ( 阅读全文

posted @ 2024-10-22 15:01 Zhentiw 阅读(37) 评论(0) 推荐(0)

[Javascript] Covert for loop code to recursion code

摘要： // loop function demo1() { // before loop beforeLoopCode; for (initCode; conditionCode; stepChangeCode) { loopCode } postCode } // recursive function 阅读全文

posted @ 2024-10-22 14:51 Zhentiw 阅读(13) 评论(0) 推荐(0)

2024年10月21日

[Javascript] Write memoize function

摘要： class MemoizeMap { constructor() { this._map = new Map(); this._weakMap = new WeakMap(); } _isObject(v) { return typeof v "object" && v !== null; } se 阅读全文

posted @ 2024-10-21 14:33 Zhentiw 阅读(13) 评论(0) 推荐(0)

2024年10月18日

[Javascript] Write Promise.all()

摘要： Promise.myAll = function (promises) { let res, rej; const p = new Promise((resolve, reject) => { res = resolve; rej = reject; }); let i = 0; let resul 阅读全文

posted @ 2024-10-18 14:54 Zhentiw 阅读(9) 评论(0) 推荐(0)

[Javascript] Write .call()

摘要： Function.apply.myCall = function (ctx, ...args) { ctx = ctx null || ctx undefined ? globalThis : Object(ctx); const fn = this; const key = Sybmol("fn" 阅读全文

posted @ 2024-10-18 14:40 Zhentiw 阅读(18) 评论(0) 推荐(0)

2024年10月14日

[Javascript] Object property order

摘要： For Javascript Object, you cannot assume the order of Object property the same as the order of adding those property. The actual order follow this rul 阅读全文

posted @ 2024-10-14 15:01 Zhentiw 阅读(15) 评论(0) 推荐(0)

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