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JavaScript

Posted by Laurence kite
Laurence kite
11,768 Points

React 16 componentDidCatch

HI I can not get the oh no something went wrong to be displayed as the fallback UI .

I thought I had made a mistake but I downloaded the final version and it does not display it.

I tried changing hasError to true, and the fallback is displayed here is the code:

import React, { Component } from 'react';

export default class User extends Component {

  state = {
     hasError: false,
     student: {
       name: '',
     },
    };


    componentDidCatch() {
      this.setState({hasError: true})
    }



  render() {

    const { name } = this.state.student;
    if (this.state.hasError) {
      return <h1> Oh no something went wrong </h1>
     }  else  {
       return (
         <div>
           <input
             type="text"
             placeholder="Enter name..."
             onChange={e => this.updateStudentName(e.target.value)}
             value={name}
           />

           <button
             type="button"
             onClick={() => this.setState({ student: null })}
           >Reset Student</button>

           <p><strong>Student Name:</strong> {name}</p>
         </div>
       );

     }

  }
}

I guess it just does not work on some browsers?