react-jsx

问题 I've created a middleware that checks if a request returns an invalid access response. If the status is a 401, I want to redirect the user to the login page Here's the middleware code import React from 'react'; import { push, replace } from 'react-router-redux'; const auth_check = ({ getState }) => { return (next) => (action) => { if(action.payload != undefined && action.payload.status==401){ push('login'); console.log('session expired'); } // Call the next dispatch method in the middleware

问题 Using React Motion's TransitionMotion, I want to animate 1 or more boxes in and out. When a box enters the view, it's width and height should go from 0 pixels to 200 pixels and it's opacity should go from 0 to 1. When the box leaves the view, the reverse should happen (width/height = 0, opacity = 0) I have tried to solve this problem here http://codepen.io/danijel/pen/RaboxO but my code is unable to transition the box in correctly. The box's style jumps immediately to a width/height of 200

问题 I'm using React.JS for a build, and am building a range input slider with two choices for a component. this is my code: <input id="typeinp" type="range" min="0" max="5" value="3" step="1"/> When I place it into my client side rendering component and try to toggle it it does not move at all. Testing it onto a JS/PHP build I have going on, it works fine. Why does this not work in JSX/React.JS and what would be a suggested work around? Thanks! 回答1: User interactions have no effect because an

问题 I am trying to build a table dynamically generated from output array of PHP script. I get the below output after componentWillMount is executed. But I am trying to use this data ( first 4 rows are one row ) and build a table. But i am unable to get how to use this array data and convert it to table dynamically. Any inputs are highly appreciated. 2016-08-24 20:24:06 2016-08-24 20:24:06 test01 20 2016-08-19 08:14:25 2016-08-19 08:14:25 test02 10 componentWillMount: function () { $.ajax({ type:

问题 Using only onChange and value and while focused inside a <input/> , preferably without jQuery, is there a way to trigger a method by pressing the 'Enter' key? Because, would only want the user to press 'Enter' key in order to update the name string state. Here is the code: constructor(props) { super(props); this.state = { name: '', } } textChange(event) { this.setState({ name: event.target.value, }) } //Would like to trigger this once 'Enter' key is pressed while focused inside `<input/>`

问题 I would like to pass a callback to a doubly nested component, and while I am able to pass the properties effectively, I can't figure out how to bind the callback to the correct component so that it's triggered. My structure looks like this: -OutermostComponent -FirstNestedComponent -SecondNestedComponent -DynamicallyGeneratedListItems The List Items when clicked should trigger a callback which is the OutermostComponents method "onUserInput", but instead I get "Uncaught Error: Undefined is not

问题 In Atom Editor I installed the following plugins linter linter-eslint It seems they don't recognize the JSX syntaxis. I have it working on the command line but had to use other plugins like esprima-fb and eslint-plugin-react . Looks like there are no such plugins for Atom Editor and would like to know if anyone of you knows a way to hack around this. 回答1: To get Eslint working nicely with React.js: Install linter & linter-eslint plugins Run npm install eslint-plugin-react Add "plugins": [

问题 I am trying to dynamically render components based on their type. For example: var type = "Example"; var ComponentName = type + "Component"; return <ComponentName />; // Returns <examplecomponent /> instead of <ExampleComponent /> I tried the solution proposed here React/JSX dynamic component names That gave me an error when compiling (using browserify for gulp). It expected XML where I was using an array syntax. I could solve this by creating a method for every component: newExampleComponent

问题 I want to wrap a ReactJS component with div, but I want to wrap the elemnt every 5 items only. I've managed (with little help) to add line break every 5 items. here's the code: var Item = React.createClass({ render: function() { return <span> {this.props.num}</span>; } }); var Hello = React.createClass({ render: function() { var items = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 ]; return <div>{items.map(function (i,index) { if (index % 5 === 0) { return [ <br />,

问题 In React Native and Redux, I am using <NavigationCardStack/> as the root component and render routes with _renderScene() . But seems like whenever the root component re-renders with state update, it does not pass the state down every update, because I put console.log(this.props) in the child component and logs the passed state, but it only logs once and that is the first time the app starts up and never logs after even if the root component re-renders with the state update. Why isn't it