makechange function js code example

Example: coin change problem all combinations javascript

var makeChange = function(total){
  var count = 0;
  var coins = [1, 2, 5, 10, 20, 50, 100, 200];

  var changer = function(index, value){

    var currentCoin = coins[index];

    if( index === 0){
      if( value % currentCoin === 0){
        count++;
      }
      return;
    }

    while( value >= 0 ){
      changer(index-1, value);
      value -= currentCoin;
    }
  }
  changer(coins.length-1, total);
  return count;
};

makeChange(200);