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ReactDOM.render 1. render 多次子组件时，getInitialState 触发多次 2. render 多次子组件时，getDefaultProps 触发一次 Read More

// 单向链表 function LinkedList() { this.head = {element: 'head', next: null}; this.node = function (node) {return {element: node, next: null}}; // 查找 this.find = function (node) { ... Read More

// set实现数组去重 function dedupe(arr) { return Array.from(new Set(arr)); } Read More

var obj = new BinaryTree(); obj.add(0); obj.add(2); obj.add(1); obj.add(3); obj.add(4); obj.add(8); obj.add(1); obj.add(-3); obj.add(-2); obj.add(-7); Read More

function mulBase(n, base) { var base16 = [{10: 'A'}, {11: 'B'}, {12: 'C'}, {13: 'D'}, {14: 'E'}, {15: 'F'}]; var arr = []; var res = ''; while (n > 0) { arr.push(n % base); ... Read More

// 创建二维数组 Array.matrix = function (rows, cols, initial) { var arr = []; for (var i = 0; i < rows; i++) { var column = []; for (var j = 0; j < cols; j++) { column[j... Read More

// (来自JavaScript高级程序设计) 自定义事件 function EventTarget() { this.handler = {}; } EventTarget.prototype = { constructor: EventTarget, // 添加事件 addHandler: function (type, fn) { i... Read More

// (来自JavaScript高级程序设计) 自定义事件 function EventTarget() { this.handler = {}; } EventTarget.prototype = { constructor: EventTarget, // 添加事件 addHandler: function (type, fn) { i... Read More

// (来自)JavaScript高级程序设计 不支持匿名函数 function throttle(fn, context) { clearTimeout(fn.tId); fn.tId = setTimeout(function () { fn.call(context); }, 100); } // (来自)百度 不支持匿名函数 function ... Read More

'use strict'; // 获取CSS function getStyle(obj, attr) { return (obj.currentStyle || getComputedStyle(obj, false))[attr]; } // 设置CSS function setStyle(obj, attr, val) { switch (typeof attr) ... Read More