react-jsx

React Native + react-native-router-flux: How to apply hideNavBar to only one <Scene/>?

╄→гoц情女王★ 提交于 2019-12-02 09:14:27
问题 In React Native using react-native-router-flux, I have two <Scene/> and when I apply hideNavBar to the first one, Login , it also applies to the second, Home even though they are on the same level. How can I apply hideNavBar to only one <Scene/> , Login ? const RouterWithRedux = connect()(Router) const store = configureStore() export default class App extends Component { render() { return ( <Provider store={store}> <RouterWithRedux> <Scene key='root'> <Scene component={Login} hideNavBar

cannot get the parent property this property when I have two inner loop

蹲街弑〆低调 提交于 2019-12-02 08:27:58
I have a complicated scenario which I am really confused how to deal with it. I have an array as follows: stories=[ { "categ": "politics", "arr": [{ "t": 1 }, { "t": 2 }, { "t": 3 }] }, { "categ": "Business", "arr": [{ "t": 1 }, { "t": 2 }, { "t": 3 }] } ] As you can see this array has another array inside it and depending on what is executed I need to loop through the first array and find the appropriate array inside the first array. So for instance if I want to get the array related to business category I need to loop through the first array and choose the array related to business. To do so

Can't use state value as props for child component

早过忘川 提交于 2019-12-02 05:08:16
In my react js app, I can't seem to use the state value as props for the child component. In the parent component, constructor , the app has a null state called selectedWarehouseID . This state( selectedWarehouseID ) should update with some information in the componentWillMount() method. Now, in the render method of the parent component I am embedding another child component that has this state as a props. <ItemChooser productsByWarehouse = { this.state.selectedWarehouseID } /> Now here's the problem, in the child component, the value of this.props.productsByWarehouse is always null . I found

Build a dynamic table using array data generated from PHP in JSX/React

[亡魂溺海] 提交于 2019-12-02 01:56:31
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: "GET", crossDomain: true, url: "http://localhost:8080/myscript.php", success: function(data){ alert

JSX doesn't evaluate integer in expression as boolean

允我心安 提交于 2019-12-01 21:00:53
I'm used to write render optional Components like this: var Foo = React.createClass({ render: function() { var length = 0; return <div>Foo {length && <Bar />}</div>; } }); This shorthand if is mentioned in the if/else in JSX guide as immediately-invoked function expression. However, since my latest update of React, it started to render 0 instead of null . Here is a jsfiddle Why is that happening? The && operator evaluates the left-hand expression first, and if the left-hand expression evaluates to something falsy it returns the value of the left-hand expression without evaluating further. So

Get HTML tag name from React element?

家住魔仙堡 提交于 2019-12-01 20:20:03
问题 Is it possible to get an HTML tag name from a React element (return from a component)? For example: function Foo() { return <span>Hello</span>; } The HTML tag name would be span . I know you can look into the type property of the React element, but it gets really difficult between SFC and normal components, and even harder when the component depth is rather large. For example: function Bar() { return <Foo />; } Should still return span . 回答1: No. React Elements are a virtual construct, and

Render React Component assigned from an import to a variable.. how?

南楼画角 提交于 2019-12-01 13:49:13
So, I have a need for dynamic determination of which component to show.. so, for example. I have: import Component1 from '..somepath/Component1' import Component1 from '..somepath/Component2' var P = { red: Component1, blue: Component2 } render() { var newComponent = P[color]; return ( <newComponent /> // not working {newComponent} // not working newComoponent // not working ) } this mapping could be huge, thus not doing a switch or if/else. how do I get this to return in another component? As per the convention the component name must be with the first letter capitalised: render() { var

How to write Definition File for React JSX

浪子不回头ぞ 提交于 2019-12-01 12:04:35
I want to write a custom definition file for Summernote.jsx so that i dont get react-summernote module not found i have written declare var ReactSummernote: JSX.ElementClass; declare module "react-summernote" { export default ReactSummernote; } and imported this as import ReactSummernote from 'react-summernote'; but got an error saying "JSX element type 'ReactSummernote' does not have any construct or call signatures" on <ReactSummernote /> following is the link Summernote.JSX You can just declare the module as: declare module "react-summernote"; Or more specifically: declare module "react

Render React Component assigned from an import to a variable.. how?

末鹿安然 提交于 2019-12-01 11:10:31
问题 So, I have a need for dynamic determination of which component to show.. so, for example. I have: import Component1 from '..somepath/Component1' import Component1 from '..somepath/Component2' var P = { red: Component1, blue: Component2 } render() { var newComponent = P[color]; return ( <newComponent /> // not working {newComponent} // not working newComoponent // not working ) } this mapping could be huge, thus not doing a switch or if/else. how do I get this to return in another component?

How to write Definition File for React JSX

六月ゝ 毕业季﹏ 提交于 2019-12-01 10:58:24
问题 I want to write a custom definition file for Summernote.jsx so that i dont get react-summernote module not found i have written declare var ReactSummernote: JSX.ElementClass; declare module "react-summernote" { export default ReactSummernote; } and imported this as import ReactSummernote from 'react-summernote'; but got an error saying "JSX element type 'ReactSummernote' does not have any construct or call signatures" on <ReactSummernote /> following is the link Summernote.JSX 回答1: You can