freecodecamp react

The update of the React-native library is very frequent. So the first thing we need to know is what version of the react-native is currently in use. How to get the current version number. There are two ways of doing this: 1. Open the Package.json file by entering the project's root directory You can see the version number of the react-native currently in u

Second, JSX Chapter II Source code DEMO1-7React uses native JavaScript version react uses JSX statement react to automatically identify {}, when JavaScript handles react child nodes This.props.children jsx embedded in JavaScript, such as: condition Judgment, Use variables, use functions, use logic with (), use logic, or (| |)

React provides two methods renderToString and renderToStaticMarkup is used to output the component (Virtual DOM) as an HTML string, which is the basis of React server-side rendering, which removes the server-side dependency on the browser environment, making server-side rendering an attractive thing.Server-Side rendering in addition to resolving the dependency on the browser environment, there are two issue

React originated in Facebook's internal project, a JavaScript library for building user interfaces, equivalent to the V-layer framework in the MVC architecture, and unlike other frameworks on the market, React each component as a state machine, Within the component, the state of the component is maintained to maintain changes in the status of the components, and when the state of the component changes, the

"One", understanding JSX   JSX is javascrpt XML--a class XML syntax that constructs tags inside a react component.   JSX is not a new language, nor does it change JavaScript syntax, just a new feature based on ECMAScript, a syntax that defines a tree structure with attributes (DOM structure) React can write components without using JSX, but using JSX can make code more

React Router 4.0 (hereinafter referred to as RR4) has been officially released, it follows the react design concept that everything is a component. So RR4 is just a bunch of components that provide navigation (and a number of objects and methods), with a declarative (in-use), and a combination of features. http://www.jianshu.com/p/e3adc9b5f75c RR4 this time using a single Code warehouse model architecture (

React is a very popular front-end development framework recently. It is widely used. Next, I will introduce five ways to create helloworld through React. js getting started examples. 1. ReactJS Overview React is a very popular front-end development framework recently. React originated from Facebook's internal project.

For gulp in react in the construction, find a lot of information, read a lot of articles, also according to the article tested many times, but is not successful. Many articles in fact are more or less lack of some steps, but also not to the source file reference, this is for the novice is the capital of the ignorant force. Finally found an article can be achieved, reproduced. You can write react in the back

Turn from: 1190000006100489 React: A JavaScript library for building the user interface. React only focuses on the UI layer; It uses virtual DOM technology to ensure high-speed rendering of its UI; it uses one-way data streams, so its data binding is simpler; how does it keep the UI rendering simple and efficient inside?React does not directly manip

front-end popular frame competition Angular Vue React Ant-design AngularjsAngular is a framework for MVVM. It's all about MVVM. The most important scenario for angular is a single-page application, or a large number of data binding scenarios.Characteristics Bidirectional data binding IOC Dependency Injection Instructions The above points are really cool to use, casually designated a zone, with a controll

In the previous section, "Building React applications using Gulp+browserify", this article looks at the more powerful building tools--webpack. Let's take a look at Webpack's strong point introduction1. Package css, pictures, and other resources in the same package2. Pre-processing files prior to packaging (less, coffee, jsx, etc.)3, according to the different import files to split your package into multiple packages4, support the development environme

This article mainly consists of two aspects, how to integrate the RN (React-native) project into the existing Android project starting from 0, as well as some pits we have encountered in the first RN's on-line project.To do the RN project for the first time, we chose to do a logical and relatively simple internal help center project for the transfer app. The entire project has 4 pages with the RN, the other pages go is native provided by the system ju

Scene Use react to do development and avoid using React-router React Router is already a V4 version. React RouterNow it has been divided into three packages:react-router,react-router-dom,react-router-native. The

: ' url-loader?limit=8192 '} ] }}Note that the output has a path property and a Publicpath property, the difference being that path is a local path, and Publicpath is the path when you enable the server (Webpack-dev-server/react-hot-loader).In Webpack so the resources need to be loaded through the loader, with multiple loaders! Separated, where the suffix of the-loader can be omitted.Each declared loader in the Webpack.config file needs to b

A primer for installation can be found at: React Native official documentation (HTTP://REACTNATIVE.CN/DOCS/0.31/TUTORIAL.HTML#CONTENT).Nodejs Knowledge Reserve: Refer to "Nodejs" (Https://leanpub.com/nodebeginner-chinese). (For knowledge, please purchase the original).Book: "React Native Introduction and Combat"code example: 30-day learning React Native Tutorial

The recent period has been a very exciting time for front-end engineers, as the three web frameworks are releasing new versions, giving us a glimpse of a more powerful web framework. Ember2.0 was released 2 months ago, and upgrading from 1.0 to 2.0 is very simple. A few weeks ago, react released version 0.14. There are also many popular front-end frameworks, like backbone, knockout and Aurelia. If you want to develop a web app, it is recommended to us

Non-dom properties?Dangerouslysetinnerhtml,ref,keyNon-dom standard attributes, which means that there are no specified attributes in the DOM standard, react introduces three non-dom attributes, as above.dangerouslysetinnerhtml: Literally, dangerous to set the internal HTML, the function of this property is to insert the HTML code directly in the JSX. Why do we use this attribute to insert HTML code? Instead of writing the code directly? Because someti

React has become a complete set of back-and-forth Web APP solutions. The derivative React Native project, the goal is magnificent, wants to write the Web app the way to write Native app. If it does, the entire Internet industry will be subverted, because the same group of people will be able to run the server, the browser and the phone at the same time with only one UI to write.Since

Say in front Create-react-app is the best way to build a new react single-page application that is provided by react and is recommended, but the dynamic style language less is not supported by default in the current version (1.5.x) of the projects it builds. If we have to use less for our project, we need to integrate it manually. This article focuses on the inte

Only write the next function, the style is not written, the great God do not laugh. Some need to improve the place to ask the great God guidance. qq:274501366 Not much to say directly on the code Index.android.js ' Use strict '; Import React, {Component} from ' React '; Import {appregistry, Image, StyleSheet, Text, View, Touchablehighlight, ListView, Refreshcontrol,} f Rom '