es6 book

Understanding ES6 's ModulesSource: Understanding ES6 Modules.Basic (Basic)in the In ES6, each module is defined in its own file . variables defined in the module or functions are not visible externally.unless you show that the with Export to export them This means that you can write code in your module and then export only those parts that need to be accessible

ES6 new feature: Object change analysis, es6 new feature object This article describes the Object changes in the new features of ES6. We will share this with you for your reference. The details are as follows: Object changes 1. ES6 allows you to write only the attribute name in the object without the attribute value. T

ES6 Introduction to detailed reference pages the relationship between ECMAScript and JavaScript is that the former is the latter specification and the latter is an implementation of the former. Generally speaking, these two words can be interchangeable. Let command ES6 New Let command to declare a variable, which is similar to Var, but the declared variable is valid only in the block of code where the Let

Welcome to ES6! New versions of JavaScript are getting closer and we will explore ECMAScript 6 new World together through a weekly series of courses. ES6 contains a number of new language features that will make JS stronger and more expressive. In the next few weeks, we'll get to know them in more detail. But before we start studying in detail, I think it's very necessary to spend a few minutes explaining w

does that mean?This means we will have the latest JavaScript core language standards this summer.This is undoubtedly a blockbuster news. As early as 2009, the previous version of ES5 just released, since then, the ES Standards Committee has been intensively preparing the new JS language standard--ES6.ES6 is a major version upgrade, and while ES6 is adhering to t

ES6 new feature 7: array expansion details, es6 new feature expansion details This article describes how to expand the array of ES6's new features. We will share this with you for your reference. The details are as follows: 1. Array. from () 1) Array. the from method is used to convert two types of objects into real Arrays: array-like objects and iterable objects

Es6 notes 7 ^_^ class, es6 notes 7 class ES6 provides a method closer to the traditional language, introducing the concept of Class as an object template. You can use the class keyword to define a class.Part from JavaScript ES6 class guide, mozilla https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Class

Es6 notes 3 ^_^ object, es6 notes 3 objectI. destructuring ES6 allows you to extract values from arrays and objects in certain modes and assign values to variables. This is called Destructuring. // Es5if (1) {let cat = 'ken'; let dog = 'lili'; let zoo = {cat: cat, dog: dog}; console. log (zoo); // Object {cat: "ken", dog: "lili" }}//

Explanation of ES6 syntax iteration protocols and iterator protocols; explanation of es6 The supplement of ECMAScript 2015 is not a new built-in or syntax, but a protocol. These protocols can be implemented by any object that complies with certain conventions.There are two protocols: the iteratable protocol and the iterator protocol. Iteratable protocols The iteratable protocol allows JavaScript objects to

How to Use ES6 in node and ES6 in node ES6 + is great, but many advanced functions node is not supported, you need to use babel to convert to ES5, 1. Install babel Dependencies Npm install babel-core -- save-dev 2. Install babel-register Npm install babel-register -- save-dev 3. babel conversion configuration. Add the. babelrc file to the project root direc

The method (recommended) for the child component to call the parent component under ES6, and the method for calling the es6 component For some purposes, I recently started to study RN again. Looking at the tutorial step by step, I recently encountered a problem, that is, the method call of the Parent and Child components. I have been Baidu for a long time. Under the ES6