yimawujiang的博客

let plane={ fire:()=>{ console.log("发射炮弹") } } let fireMissile=()=>{ console.log("发射导弹") } let fireAtomicBomb=()=>{ console.log("发射原子弹") } let fire1=plane.fire plane....

var pubsub = {}; (function (q) { var topics = {}, // 回调函数存放的数组 subUid = -1; // 发布方法 q.publish = function (topic, args) { if (!topics[topic]) { return false; } setTimeout(f...

let SingleObj = (function() { let instance return function() { if(instance) { return instance } else { this.name = "Join" instance = this } } }()) obj = new SingleObj() console.log(...

class Circle{ constructor(){ this.shape="circle" } } class Rectangle{ constructor(){ this.shape="rectangle" } } class ShapeFactory{ constructor(){ } getShapeInstance(shapeType){ shapeTyp...

class Circle { constructor() { this.shape = "circle" } } class Rectangle { constructor() { this.shape = "rectangle" } } class ShapeFactory { constructor() {} getShapeInstance(shapeType) { ...