let x = new Array(3); // [undefined, undefined, undefined] let y = Array.of(8); // [8] let z = [1, 2, 3]; // Array literal 最后,Array的prototype中添加了几个方法,其中的find方法我觉得Javascript开发者将会非常喜欢。 1、find方法:获取回调函数return true的第一个元素。 2、findIndex...
You’ve probably heard aboutECMAScript 6(or ES6) already. It’s the next version of JavaScript, and it has some great new features. The features have varying degrees of complexity and are useful in both simple scripts and complex applications. In this article, we’ll discuss a hand-picked ...
如果你想要学习更多的新的Math内容,点击new number and math features in ES6。 扩展操作符 扩展操作符(…)是一个非常方便的语法,它用于在数组的特殊的地方扩展元素,比如函数调用中的参数。下面展示一些例子来说明它的用处。 首先,我们来看看如何通过另一个数组来扩展数组的元素: ...
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。但大部分标准已经就绪,且各浏览器对ES6的支持也正在实现中。要查看E...
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...
This essay will give you a quick introduction to ES6. If you don’t know what is ES6, it’s a new JavaScript implementation. If you’re a busy JavaScript software engineer (and who is not?), then proceed reading to learn the best 10 features of the new generation of the most popular...
ECMAScript 6, also known as ECMAScript 2015, is the latest version of the ECMAScript standard. ES6 is a significant update to the language, and the first update to the language since ES5 was standardized in 2009. Implementation of these features in major JavaScript engines is underway now....
The AWS SDK for JavaScript code examples are written in ECMAScript 6 (ES6). ES6 brings new syntax and new features to make your code more modern and readable, and do more. ES6 requires you use Node.js version 13.x or higher. To download and install the latest version of Node.js, ...
FAQ On How To Implement JavaScript ES6 Features What are arrow functions in ES6 and how do I use them? Arrow functions offer a new, shorter syntax for writing functions in JavaScript. They use the => notation and don’t create their own this context. For example: const add = (a, b)...
Babel通过语法变换器支持最新版本的JavaScript。 这些插件允许您立即使用新语法,而无需等待浏览器支持。 但是babel 只是转换语法,并不能转换新特性,如箭头函数以及一些新的方法拓展 Since Babel only transforms syntax (like arrow functions), you can use babel-polyfill in order to support new globals such as ...