Set Component state from other component / outside function

javascript react js 6 years, 1 month ago

/*App.js*/ import React, { Component } from 'react'; function setName(name) { this.setName(name); } class App extends Component { constructor(props) { super(props); this.state = { name: 'koderplace', }; setName = setName.bind(this); this.setName = this.setName.bind(this); } setName(name) { this.setState({ name, }); } render() { return ( <div>{this.state.name}</div> ); } } export { App, setName }; /*index.js*/ import React from 'react'; import ReactDOM from 'react-dom'; import { App, setName } from './App'; ReactDOM.render(<App />, document.getElementById('root')); setName('setName');

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To check the changes try to create a react app using create-react-app demoapp and replace the code in the specific place. You can call setName from outside functions as well same like react component.
Happy Coding :--)

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