[‘“bc’, ‘defg’] → ‘?????’  → [‘abc’,’defg’]

json.stringify([‘“bc’, ‘defg’]) -> “[‘\”bc’,’defg’]”

[999, 123] -> “[999,123]”

N elements , <= L L+5

0-9 ->1
10-99 -> 2
100-999 -> 3

string length is (2+ ((2*N) -1) + (N * log(10, L)))

function wrap(action, msec) : wrapped_action

function wrap(action, msec) {

   let lastTime = 0;

   const fn = () => {
     const now = new Date().getTime();

     if( now >= lastTime + msec ){
	 action();
 	 lastTime = now;
     } else {
       setTimeout( fn, now - (lastTime + msec) )
     }
   }

   return fn;

}