In JavaScript, this is the current execution context of a function.To understand this clearly, let's check out the following examples:ExampleTry this code » function Person(nickname, country) { this.nickname
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
With ES6, JavaScript finally gets literals for string interpolation and multi-line strings. 4.3.1 String interpolation In ES5, you put values into strings by concatenating those values and string fragments: function printCoord(x, y) { console.log('('+x+', '+y+')'); } In ES6 you ca...
Don’t worry if you’re not a master at JavaScript yet. You don’t need to be awesome at JavaScript to take advantage of the added bonuses ES6 gives you. In this article, I want to share with you eight ES6 features I use daily as a developer to help you ease into the new syntax....
WeakMap class in Javascript ES6 introduced new collection data structures and classes.WeakMapis one of these collection classes, similar to the WeakMapis a map class that stores keys and values, with keys storing weak references. This means that if the key’s reference is unreferenced, the val...
ES6 (ECMAScript2015) is the sixth edition of JavaScript with improved features and syntaxes. In this tutorial, you will learn about JavaScript ES6 with the help of examples.
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...
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...
Chapter 8: Iterators and Generatorsdiscusses the addition of iterators and generators to the language. These features allow you to work with collections of data in powerful ways that were not possible in previous versions of JavaScript. 第8章: 迭代器和生成器讨论了迭代器和生成器的添加。这些特性允...
Anexample:‘‘‘javascript//example.jsvarx=baz:0,foo:1,calc:function()returnthis.foo+this.baz;;x.bar=2;x["baz′′]=3;console.log(x.calc());‘‘‘Mangleallproperties(exceptforJavaScript‘builtins‘)(∗∗very∗∗unsafe):‘‘‘bash/‘‘‘Thiswillmangleallpropertiesthatendwithan...