debounce is decorator wrapper that suspends calls to f until there’s ms milliseconds of inactivity

debounce.js

/**
* use this function if you want to call other function after some 
* time(provided by you in ms parameter) with latest arguments.
* Basically it delay our functino call by given MS(milliseconds).
*/
function debounce(fun,ms) {
  let time; // storing timer returned by setTimeout api.
  return function() {
    clearTimeout(time); // clear timer on each time of function call.
    time = setTimeout(() => fun(...arguments), ms)
  }
}

function plus(a, b) {
   console.log(a + b);
}
// calling plus function after 500ms
const check = debounce(pluc, 500)
check(5, 6) // we not see result in console bcz we call next statement without any delay
check(6, 7) // we see 13 in console as expected result, if you want to see