Answer1215

摘要： ES6 decided that Array Comprehensions will not included in this version, ES7 will include this. Therefore, only FireFox support this, you can test it ... 阅读全文

摘要： Read More:http://es6.ruanyifeng.com/#docs/destructuringArray“模式匹配”，只要等号两边的模式相同，左边的变量就会被赋予对应的值:Exp 1:var [head, ...tail] = [1, 2, 3, 4];console.log(hea... 阅读全文

摘要： Here is the way you get value from an object:var obj = { color: "blue"}console.log(obj.color); //blueDestructuring Assignment:ObjectDestructuring ... 阅读全文

摘要： Normally, we can set default value for function param://Here use "Hello" as default paramvar receive =function(message="Hello", handle){ handler(me... 阅读全文

摘要： ES6 arrow function is somehow like CoffeeScirpt.CoffeeScript: //function callcoffee = -> coffee()coffee=(messag... 阅读全文

摘要： In ES6, IIFE is not necessary:// IIFE写法(function () { var tmp = ...; ...}());// 块级作用域写法{ let tmp = ...; ...}另外，ES6也规定，函数本身的作用域，在其所在的块级作用域之... 阅读全文

摘要： Fialdcase 1: let can work in it's block{ let a = 10; var b = 1;}a // ReferenceError: a is not defined.b //1Case 2: Let has no "Hosting" Problemf... 阅读全文

摘要： var message = "Hi";{ var message = "Bye"; }console.log(message); //ByeThe message inside the block still has impact on the outside.Just rememb... 阅读全文

摘要： When you minify your code with a tool like Uglify, the resulting minified file will rename variables. This is a problem for AngualrJS, which uses para... 阅读全文

摘要： Local Install:npm install -g traceurnpm install grunt-contrib-watchnpm install grunt-traceur-latestGruntFile:module.exports = function(grunt){ grun... 阅读全文