Seconds understand the delay and timing function of wechat applet

The time delay function , Print once in two seconds “hello”.

 setTimeout(()=>
      {
    
         console.log("hello");
      }, 2*1000);

Timing function , Print every two seconds “hello”.

 setInterval(()=>
      {
    
         console.log("hello");
      }, 2*1000);

If you want to Cancel timing function , be

 var k = setInterval(()=>
      {
    
         console.log("hello");
      }, 2*1000);

clearInterval(k);  

The above function can cancel the timer ,k It's a timer id.