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Lesson Topics's No:-  |1 | 2|Last
Lessons:-ReactJS - Refs

Using Refs

The following example shows how to use refs to clear the input field. ClearInput function searches for element with ref = "myInput" value, resets the state, and adds focus to it after the button is clicked.

App.jsx

import React from 'react';
import ReactDOM from 'react-dom';

class App extends React.Component {
   constructor(props) {
      super(props);
		
      this.state = {
         data: ''
      }
      this.updateState = this.updateState.bind(this);
      this.clearInput = this.clearInput.bind(this);
   };
   updateState(e) {
      this.setState({data: e.target.value});
   }
   clearInput() {
      this.setState({data: ''});
      ReactDOM.findDOMNode(this.refs.myInput).focus();
   }
   render() {
      return (
         <div>
            <input value = {this.state.data} onChange = {this.updateState} 
               ref = "myInput"></input>
            <button onClick = {this.clearInput}>CLEAR</button>
            <h4>{this.state.data}</h4>
         </div>
      );
   }
}
export default App;

 

 
 
 
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Anil  Bist

Skills    ReactJs

Qualifications :- High School - SLV, College/University - Graphic Era Deemed Univ University,
Location :-Dehradun,Dehradun,Uttarakhand,India
Description:-

I started my Professional Journey in 2006 with one of the Web Development Company in Bangalore and my 1st framework was "Ruby on Rail" as Web development and delivered around 5+ Projects using this platform. Then came another dimension as JEE/Sturst framework, Gradually I realized that I want to build something on my own and give my passion and energy on creating something different a
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