udemy react js

Recently in looking at react-native, the internal implementation is very interested in, and I wrote the module registered in, and in JS call, very curious how his method is exposed to JS, see the source of Basejavamodule, inside there is how to expose the method. @Overridepublic finalmap React-native how the Android Ja

/** * Loading JavaScript code-uncomment The one you want. * OPTION 1 * Load from Development server. Start the server from the repository root: * * $ NPM -Start * * to-run on device, change ' localhost ' to the IP address of your computer * (You can get it by typing ' ifconfig "into the terminal and selecting the * ' inet ' Value under ' En0: ') and make sure your computer and IOS device is * on the same Wi-Fi network. */ jscodelocation = [Nsurl urlwithstring:@ "Http:/

1, style class of the wording Javascript:class React:classname 2, style of writing (react's hump named) Javascript:style= "Background-color:white" React:style={{backgroundcolor: "White"}} 3, variable (react variable is curly braces, JS is quotes) Javascript:onclick= "Clicksearch (e)" react:onclick={(e) =>this.clicksearch (e)} 4, the introduction of resources Javascript: CSS:

React-router JS Control Routing JumpReact-router control the way of routing jumps, currently know there are two [link link, and JS control jump], but the most common is to use Link (like a tag), to jumpJS Implementation methodBecause sometimes need to click on a tag, or a button, to dynamically implement the page jump address, this need to use

Calling PropTypes validators directly is not supported by the `prop-types` package.Use PropTypes.checkPropTypes() to call them.First of all, you have to understand that this is just a warning, not a mistake, so you can not change it will not affect, unless you and I, like a code neatYou only have to rely on installation in the appropriate version to solve this problem, your reliance on[emailprotected]^15.3.0 [emailprotected]^15.3.0[Email protected]^0.14.9 [email protected]^0.14.9 This version or

Reference: http://www.ruanyifeng.com/blog/2015/03/react.htmlNote: 1. Must be placed on the server and cannot be run on the file systemLogin.html　　Login.css. login{ background-color:red;}. header{ height:30px; Background-color:gray;}. userrole{ height:80px; Background-color:lightcyan;}. userid{}.userpassword{}.submitbuttonenabled{ Color:blue;}. submitbuttondisabled{ Color:gray;}　　Login.jsvar Login = React.createclass ({//props type and whether proptypes must be filled in: {ti

Oncheckall = (data) = {var CheckBox = document.getelementsbyname (data); for (let i=0;i　　 JS react Select all and reverse