linkedin help - 20180222 - 1

linkedin help - 20180222 - 1

var obj = {value:3,stop:false}, //assing your value to obj.value every sec etc.
    values = [], //array to store values
    freq = 500, //frequency of check
    result = undefined; //the result of average in the end

function checker(t){ //the function to periodically check
  checker.startTime = checker.startTime || t;
  if(obj.stop){ //if you set obj.stop to true, you will terminate the check
    /*in the end calculate the result
    if you want, store the a.length somewhere else 
    to prevent property access each time, but I won't
    bother with that here*/
    return result = values.reduce(function(ac,d,i,a){if(i !== a.length -1){return ac += d}else{return (ac + d)/a.length}},0);
  }
  if(t - checker.startTime >= 500) {
    checker.startTime = t;
    values.push(obj.value);
  }
  window.requestAnimationFrame(checker);
}
/*To use do check(); to stop set obj.stop to true,
after you stop the result variable will have the average*/