react-jsx

Using 'material-ui' with react-rails gem?

不问归期 提交于 2019-11-29 09:36:30
问题 I would like to use the material-ui component library in my Rails 4 app. I am currently using the react-rails gem to add .jsx compilation to the asset pipeline. I have added material-ui via rails-assets in the gemfile like so: source 'https://rails-assets.org' do gem 'rails-assets-material-ui' end And I have required the library in my application.js file like so: //= require material-ui However I keep getting the error "couldn't find file 'material-ui". How can I use the material-ui component

Set component's props dynamically

删除回忆录丶 提交于 2019-11-29 06:45:37
问题 I need to set component's props after it is stored in a variable, here is pseudo code: render(){ let items = [{title:'hello'}, {title:'world'}]; let component = false; switch (id) { case 1: component = <A /> break; case 2: component = <B /> break; } return( items.map((item, index)=>{ return( <span> {/* SOMETHING LIKE THIS WOULD BE COOL - IS THAT EVEN POSSIBLE*/} {component.props.set('title', item.title)} </span>11 ) }) ) } Inside return I run a loop where I need to set props for the component

How to slide <View/> in and out from the bottom in React Native?

断了今生、忘了曾经 提交于 2019-11-29 05:52:13
In React Native iOS, I would like to slide in and out a like to following in the picture. In the following example, when a button is pressed, the Payment Information view pops up from the bottom and when the collapse button is pressed, it goes back down and disappears. What would be the correct and proper way to go about doing so? Thank you in advance! EDIT Basically, you need to absolute-position your view to the bottom of the screen. Then you translate its y value to equal its height. (The sub view must have a specific height in order to know how much to move it) Here's a playground showing

Warning: Failed propType: Invalid prop `component` supplied to `Route`

六眼飞鱼酱① 提交于 2019-11-29 04:29:38
问题 I'm trying new react-router 1.0.0 and I'm getting strange warnings I can't explain: Warning: Failed propType: Invalid prop `component` supplied to `Route`. Warning: Invalid undefined `component` supplied to `Route`. The app is simple: import React from 'react'; import ReactDOM from 'react-dom'; import { Router, Route } from 'react-router'; import App from './components/app'; var Speaker = require('./components/speaker'); ReactDOM.render(( <Router> <Route path="/" component={App}> // This is

How to make a sticky footer in react?

回眸只為那壹抹淺笑 提交于 2019-11-29 03:21:40
问题 I've made a sticky footer higher-level component that wraps other components inside itself: Footer.js //this is a higher-order component that wraps other components placing them in footer var style = { backgroundColor: "#F8F8F8", borderTop: "1px solid #E7E7E7", textAlign: "center", padding: "20px", position: "fixed", left: "0", bottom: "0", height: "60px", width: "100%", }; const Footer = React.createClass({ render: function() { return ( <div style={style}> {this.props.children} </div> ); } }

How to avoid re-rendering the whole List instead of adding the new item to the DOM list in react JS?

偶尔善良 提交于 2019-11-29 02:39:52
As in the React demo, and other examples, I see people resetting the State data if one record is added or removed. Which results in the whole list being re-rendered instead of simply appending the latest record, or removing the selected one from the current DOM tree. How is it helpful? Or how can I avoid this case. UPDATE The situation: Facebook feed, you keep scrolling the feed, reach around 5000 feed statuses and many other types of cards. Not just that, each status feed has it's own "comment list". Every second, 5-10 status cards are pre-pended to your wall, or appended in case of lazy

Uncaught TypeError: this.state.data.map is not a function

柔情痞子 提交于 2019-11-29 01:33:27
I am new to React, have seen some of the similar issues, but didn’t find why this happens. I am getting an “Uncaught TypeError: this.state.data.map is not a function”. Here is the code. Please, help to find what is the problem. class Audienses extends React.Component { constructor (props) { super(props); this.state = { data: '' }; this.loadFromServer = this.loadFromServer.bind(this); this.childeDelete = this.childeDelete.bind(this); this.childeEdit = this.childeEdit.bind(this); } loadFromServer () { var xhr = new XMLHttpRequest(); xhr.open('get', this.props.url, true); xhr.onload = function()

How to test decorated React component with shallow rendering

为君一笑 提交于 2019-11-29 01:24:44
I am following this tutorial: http://reactkungfu.com/2015/07/approaches-to-testing-react-components-an-overview/ Trying to learn how "shallow rendering" works. I have a higher order component: import React from 'react'; function withMUI(ComposedComponent) { return class withMUI { render() { return <ComposedComponent {...this.props}/>; } }; } and a component: @withMUI class PlayerProfile extends React.Component { render() { const { name, avatar } = this.props; return ( <div className="player-profile"> <div className='profile-name'>{name}</div> <div> <Avatar src={avatar}/> </div> </div> ); } }

Render Content Dynamically from an array map function in React Native

倖福魔咒の 提交于 2019-11-29 01:09:06
I'm trying to get data from an array and using map function to render content. Look at **{this.lapsList()}** and the associated **lapsList()** function to understand what I'm trying to do. The result is nothing is displaying (Views under view, etc.) Here is my simplified code: class StopWatch extends Component { constructor(props) { super(props); this.state = { laps: [] }; } render() { return ( <View style={styles.container}> <View style={styles.footer}> <View><Text>coucou test</Text></View> {this.lapsList()} </View> </View> ) } lapsList() { this.state.laps.map((data) => { return ( <View><Text

Trouble understanding JSX spread operator

六月ゝ 毕业季﹏ 提交于 2019-11-29 00:08:36
问题 Given this example code from the React docs: var props = {}; props.foo = x; props.bar = y; var component = <Component {...props} />; I did some looking into what ...props actually evaluates to, which is this: React.__spread({}, props) Which in turn evaluates to {foo: x, bar: y} . But what I'm wondering is, why can't I just do this: var component = <Component props />; I don't see understand what the point of the spread operator is. 回答1: This helps make your code more succinct - since props is