Question

I need to invoke some function given number of times through given delays. How should I do – declare variable for timer and pass it to invoking function for stopping timer in some moment or in loop (n times) invoke setTimeout once ( or some another approach to skeep delay time once) or other.Thanks.

edit to fix syntax eror

    var timerID = null;
    var n = 5;
    this.timerID = setInterval(function(){ 
              funcToInvoke(n,timerID){ 
                   if(invokeNumber == n){
                       clearInterval(timerID);
                       return;
                   }
                   else { do something}
               }
    },delay)

Answer 1

Your current method has a syntax problem, you can’t have a function parameter like this.timerID). In fact, you should remove the whole funcToInvoke declaration, and declare n and timerID as local variables, so they will be available to the closure. Like this:

// Don't forget to define n here!
var n = 5;
// Change timerID to local var instead of property
var timerID = null;
timerID = setInterval(function(){ 
    if(invokeNumber == n){
        clearInterval(timerID);
        return;
    } else { 
        //do something
    }
    // You can setTimeout again anywhere in this function if needed
}, delay);