Answers for "react update state every second"

1

react function being called every minute

componentDidMount() {
  this.interval = setInterval(() => this.setState({ time: Date.now() }), 1000);
}
componentWillUnmount() {
  clearInterval(this.interval);
}
Posted by: Guest on May-25-2020
0

make a component update every second react

import React, { Component } from 'react';

class TimeComponent extends Component {
  constructor(props){
    super(props);
    this.state = { time: Date.now() };
  }
  render(){
    return(
      <div> { this.state.time } </div>
    );
  }
  componentDidMount() {
    console.log("TimeComponent Mounted...")
  }
}

export default TimeComponent;
Posted by: Guest on October-18-2020

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