for(vari=0;i<filterarray.length;i++){alert(filterarray[i]);} 4.增强for…in…循环: 注意:fo…in循环一般用于对象的遍历,但是这里有一个坑需要注意: 任何对象都继承了Object对象,或者其它对象,继承的类的属性是默认不可遍历的,for...in循环遍历的时候会跳过,但是这个属性是可以更改为可以遍历的,那么就会...
function_curry2(fn){returnfunctionf2(a,b){switch(arguments.length){case0:returnf2;case1:return_curry1(function(_b){// 将参数从右到左依次赋值 1 2// 第一次执行时,是 fn(a, 1)returnfn(a,_b);});default:// 参数长度是 2 时 直接进行计算returnfn(a,b);}};}function_curry1(fn){retu...
Bird.prototype.fly=function() {return"I am flying!"; };functionPenguin() { } Penguin.prototype=Object.create(Bird.prototype); Penguin.prototype.constructor=Penguin; Penguin.prototype.fly=function(){return'Alas, this is a flightless bird.';}//重写方法flylet penguin=newPenguin(); console.log(p...
var dispatcher = require('../../../util/dispatcher');module.exports = function(app) {return new Handler(app);};var Handler = function(app) {this.app = app;};var handler = Handler.prototype;/*** Gate handler that dispatch user to connectors.** @param {Object} msg message from clien...
JavaScript 中的其他常见示例是 forEach、filter 和reduce。高阶函数不仅需要操作数组的时候会用到,还有许多函数返回新函数的用例。Function.prototype.bind 就是一个例子。 Map 示例 假设我们有一个由名字组成的数组,我们需要将每个字符转换为大写字母。 const names = ['irish', 'daisy', 'anna']; 不使用高...
isHuman: false, printIntroduction: function() { console.log(`My name is ${}. Am I human? ${this.isHuman}`); } }; const me = Object.create(person); = 'Matthew'; // "name" is a property set on "me", but not on "person" ...
1.filter():筛选函数 1>:筛选单个元素, object.filter("selector") 2>筛选多个元素: object.filter("selector,selector") <span class="yes"></span> <span>no or yes</span> $("span").filter(".yes,.no").text("yes or no"); 3>,通过一个函数返回值来确定筛选的selector ...
("没有找到指定app窗口: " + appName); } function 获取当前页面内容(appName) { log(arguments.callee.name); let window = 查找指定app窗口(appName); let views = com.stardust.automator.UiObject.Companion.createRoot(window.getRoot()).find( idEndsWith("tv_title").visibleToUser(true).bounds...
[label, tab] of Object.entries(tabs)) { worksheet = workbook.addWorksheet(label) worksheet.state = 'visible' const columns = Object.keys(tab[0]).map((items) => ({ name: items, filterButton: true })) const rows = tab.map((entry) => Object.values(entry)) workbook.getWorksheet(...
console.log({}.__proto__);//有let a = Object.create(null); console.log(a.__proto__);//undefined #使用Object.create实现类式继承 //Shape - superclassfunction Shape() {this.x =0;this.y =0; } Shape.prototype.move=function(x, y) {this.x +=x;this.y +=y; ...