debouncing.js

//takes function to be debounced and delay time to fire.  
/*returns passed function wrapped with settimeout to delay fire
and updates to settimeout whenever called. */
let debounce=(fn,timedelay)=>{
        let timerid=null;
        return function(){
            clearTimeout(timerid);
            timerid=setTimeout(fn.bind(this,...arguments),timedelay);
        }
    };