This is one of the most awaited features in JavaScript. Here's an example:ExampleTry this code » function sayHello(name='World') { return `Hello ${name}!`; } console.log(sayHello()); // Hello World! console.
2. foreach或for...in语句是语法层面的支持,跟迭代器模式没有必然联系。(若语法层面不支持,那函数式编程中的递归的效果是一样的,假如编译器/解析器支持尾递归则更好了,可以JS不支持) 下面我们通过迭代器来实现Python中的range函数,并通过range函数创建一个超大的有限序列正整数集合(直接用数组的话绝有可能导致栈...
This chapter describes the most important features of ES6. New Features in ES6 Browser Support for ES6 (2015) ES6 is fully supported in all modern browsers since June 2017: Chrome 51Edge 15Firefox 54Safari 10Opera 38 May 2016Apr 2017Jun 2017Sep 2016Jun 2016 ...
JavaScript ES6 brings new syntax and new awesome features to make your code more modern and more readable. It allows you to write less code and do more. ES6 introduces us to many great features like arrow functions, template strings, class destruction, Modules… and more. Let’s take a loo...
1. Brief ES6(ECMAScript 6th edition)于2015年7月份发布,虽然各大浏览器仍未全面支持ES6,但我们可以在后端通过Node.js 0.12和io.js,而前端则通过Traceur或Babel这类Transpiler将ES6语法预转译为ES5语法,来提前兴奋一把。而
本文基于lukehoban/es6features,同时参考了大量博客资料。 ES6(ECMAScript6)是即将到来的新版本JavaScript语言的标准,代号harmony(和谐之意,显然没有跟上我国的步伐,我们已经进入中国梦版本了)。上一次标准的制订还是2009年出台的ES5。目前ES6的标准化工作正在进行中,预计会在14年12月份放出正式敲定的版本。但大部分标...
We’ll go through the eight features in the follow sections. For now, I’ll go through the first five features. I’ll add the rest as I go along in the next couple of weeks. By the way, browser support for ES6 is amazing.Almost everything is supported nativelyif you code for the ...
A simple and standardised module system has so far proven elusive in JavaScript. I think it's one of the most important features that has remained missing from the core language. The good news is ES6 Modules will change all this and will be supported in all modern browsers sooner than you...
ReactJs koa 兼容性对比表格 Well-known Features 本节介绍一些广为人知的 ES6 “明星”特性,也就是讨论 ES6 时经常提及的一些新特性。当然 ES6 并不仅限于这些,还包括很多其他有用的特性,会在本系列的其他文章中介绍。 let and const let 命令 原来的 javascript 中没有块级作用域,只有函数级作用域。ES6 中...
Disclaimer: the list if highly biased and subjective. It is in no way was intended to diminish usefulness of other ES6 features, which didn’t make it to the list simply because I had to limit the number to 10. First, a bit of history because those who don’t know the history can’...