In a single Page, Apps we ' re used to fetch the data on event callbacks. That disables the capacity-the URL to share it to someone else and get-to-the-same state of the app, just like in n On the single Page Apps.This lesson shows-to-use React and React Router-use the URL as the source of the truth for your app state.Doing this on React, we can devide into three
This example shows how to render pages that perform AJAX callsUpon page load.//Instead of waiting a fixed amount of time before doing the render,We are keeping track of every resource, which is loaded.//Once all resources is loaded, we wait a small amount of time(resourcewait) In the case these resources load the other resources.//The page is rendered after a maximum amount of time (maxrendertime)The or if no new resources are loaded.//page.onResourceRequested =function(requestData, networkReque
//file path to read, TXT and CSV supportedvarOpenfilepath= "LieBiao.txt";p hantom.outputencoding= "GB2312";//Output Encodingvaridlist=NewArray ();//ways to read file informationfunctionreadidlist () {Console.log (' Reading ... '); //load Read file module varFS = require ("FS"); Fs.encoding= "GB2312"; //calling a Read method varFile=fs.open (Openfilepath, ' R '); //no function to read a line, only read all the functions varreadtext=File.read (); //Close when read is completeFile.close ()
Here is the source code on obtain a snapshot of a website by using PHANTOMJS.var webpage = require ("webpage"), address, filename, height, width; Generate webpage Objectvar page = webpage.create (); Generate one Pagevar system = require ("system"); Generate system object to obtain Parametersvar args = System.args; Get the number of input Parametersconsole.log ("number is" + args.length); if (Args.length!== 5) {//If the N Umber of parameters is not correct exitconsole.log ("the correct
When building a project with VUE-CLI, NPM installs the package with an error.Error message:NPM err! Failed at the [email protected] Install script ' node Install.js '.NPM err! Make sure you have the latest version of node. JS and NPM installed.Dependency package [email protected] installation failure is related to the networkSolution:1, a ladder (VPN) installation ( speed is very slow, may be related to my network, half an hour installed so little ) 2. Download the
Reference: http://www.lcode.org/react-native/React Native Chinese web: http://reactnative.cn/docs/0.23/android-setup.html#content1 , installation JDK (best default installation path try not to change)Http://jingyan.baidu.com/article/a24b33cd59b58e19fe002bb9.htmlHttp://www.jb51.net/article/36811.htm (three environment variables are configured)Java SE Development Kit 8u77 Windows x64187.31 MB Jdk-8u77-windows
(React-Native 7) Rn hybrid development -- the Activity directly references the React native component,Introduction:
During the hybrid development of Activity and ReactNative, we sometimes need to directly introduce the already written reactNative js component. In this case, we need to understand how the Activity References ReactNative. This article describes how to directly apply a written ReactNative compo
React Native v0.4 released, since React Native open source, including more than 12.5k stars,1000 commits,500 issues,380 pull requests and 100 contributors, there are 35 plugins and 1 x AppStore Apps!Direct hit scene"HTML Development macosapp Tutorial" Http://pan.baidu.com/s/1jG1Q58MThis release is mainly improved as follows:
error messages and documentation : added a number of warning messages, updated
Talking about the similarities between the frontend and backend of React to prevent repeated rendering, and the react is homogeneous
What is the frontend and backend homogeneity?
To solve some problems (such as SEO and rendering speed improvement), react provides two methods to generate an HTML text string on the server side. After the HTML string is obtained, it
React-native-image-picker is a third-party library that integrates the capabilities of cameras and albums because it is relatively simple to use and is loved by front-end developers. React-native-image-picker Use
1, first, install the plugin.
NPM Install React-native-image-picker@latest--save
2, configure the Android and iOS platforms separately
# # Android Plat
Android React-Native series (1) Zero-Infrastructure React-Native Development Environment
I have heard of the well-known React-Native for a long time. (We don't know much about it here, because the company's business is not too busy, just now we can have time to learn about RN. We know that building an environment for any language is the first step. This blog post
react-native-icons Download
Run NPM install React-native-icons@latest--save at the root of the project and you will see the plugin in the Node_modules directory after the download is complete:
Configuration
Currently only supports iOS, so only the Xcode configuration: Import reactnativeicons.xcodeproj
1. Right-click on project libraries:
Add Node_modules/react-n
React-native Getting Started GuideGitHub:https://github.com/vczero/react-native-lession React-native: Develop your native app with JavaScript, unleash the Native UI experience and experience hybird development efficiency.The last one weeks of writing the article below, the link is GitHub page, in fact, you can also find the article in the series blog:
Le
Talking about the direct output of react homogeneous style and the react homogeneous Style
Preface
As mentioned above, through Homogeneous server rendering, you can directly export the html structure. Although we have explained the solutions for introducing problems to static resources such as styles and images on the server, we have not actually performed any relevant operations, this article explains how
React is a JavaScript-language tool library, in this JavaScript tool overwhelming era, no surprises, The first need to install node. JS and npm,react itself does not depend on node. js, but many of the tools we use in our development require the support of node. js. The appropriate installation method can be found on the website of node. JS (https://nodejs.org/) Installing node. JS also installs the NPM,NPM
development environment NPM install Webpack--save-dev
Local installation to production environment NPM install Webpack--save
The specific definitions of these three environments can be queried on their own.Next need to install Babel (transcoding), React, React-dom, eslint (grammar detection), here I do not say the method of installation, directly put the configuration, we directlyInstall"Devdepend
[React Native Development] ViewPagerAndroid of React Native Control and Performance instance on the top of Meituan homepage (17)(1) Preface
Today, let's take a look at how the ViewPagerAndroid component is parsed and modeled to achieve the top effect of the Meituan homepage.
The newly created React Native technology exchange group (282693535). You are welcome to
To solve the problem that react-router/react-router-dom v4 history cannot be accessed,
Preface
Recently I upgraded react-router. When using react-router-dom, the sub-component uses this. props. history cannot be found. Check the official documentation and I haven't found it for a long time, because I jumped to the page
Application background:PHANTOMJS a crawler, access to the HTTPS site, one-way authentication (authentication server identity only) can be, two-way authentication (both the server and the client need authentication) must upload the local certificate;Start with a PEM certificate that contains the public key private key access, how can not, must be split into two, the public key and the private key apart, with--ssl-certificates-path=Command line:#用根证书已经签名过的客户端证书client. PFX, generating the public ke
The following is part of the code: VAR htmlnodeinfo= (Alladurlelements.snapshotitem (i). getattribute ("href"). Match (/\*\* (http[\s]*$)/) [1]). Replace ("* *", "");/ /htmlnodeinfo= UrlDecode (HtmlDecode (Htmlnodeinfo));//Call the following two methods. Fs.write (Inputcsvpath, Htmlnodeinfo + "\ r \ n", ' a '), function UrlDecode (str) {var ret= ""; for (Var i=0;i PHANTOMJS decoding URLs
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