react native show current time and update the seconds in real-time

Question

I want to show the current time(MM/DD/YY hh:mm:ss) in react native app like a clock, and get update every seconds, I tried using new Date() and set it in state, but the time don

Answer 1

Just move setInterval into componentDidMount function.

Like this :

  componentDidMount() {
    setInterval(() => {
      this.setState({
        curTime : new Date().toLocaleString()
      })
    }, 1000)
  }

This will change state and update every 1s.