Pass any function and its arguments using rest parameter syntax to function that repeats that function.

looper.js

/*
Sometimes i wan to run different functions multiple times without re-writing setInterval 
and specifying speed, etc. This solution made that a little quicker.
*/
const looper = (runCount, i, speed, logit, fn, ...args) => {
  let r = () => {
    if (i++ >= runCount) {clearTimeout(si)};
    logit ? console.log(fn(...args)) : fn(...args);    
  };
  let si = setInterval(r, speed);
};
// runCount, 0, speed, logit, function, function_arg1, function_arg2, etc
looper(10, 0, 500, true, myfunction, "myfunction arg1");