Comparing strings in 2d array

1

My problem is comparing the cid[z] to the result[z][0] (lines 50-54). I’m trying to only have one list of [‘PENNY’, 0.5] in theresult array, but my attempts to compare it to the [‘PENNY’, 0 ] in the cid array are failing.

Thanks!


function checkCashRegister(price, cash, cid) {
  var change = cash - price;
  var result = []; 
  var response = ''
  var val = [["ONE HUNDRED",100],["TWENTY",20],["TEN",10],["FIVE",5],["ONE",1],["QUARTER",.25],["DIME",.1], ["NICKEL",.05],["PENNY",.01]];
 var total = 0, i;
 for (i in cid){
   total += cid[i][1];
  total = Math.round(100*total)/100;
  }
  cid = cid.reverse();
  if(change == 0){
      response = 'CLOSED';
  } else if (change > total){
      response = 'INSUFFICIENT_FUNDS';
  } else{
      var x;
      for (x in val){
        var currentCid = cid[x][1];
        var currentVal = val[x][1];
          var y = 0;
          if (change >= currentVal && currentCid != 0){
            while (currentCid != 0 && change >= currentVal){
              y += currentVal
              change -= currentVal;
              change = Math.round(change*100)/100;
              currentCid -= currentVal;
              }
            y = Math.round(y*100)/100;
            result.push([val[x][0],y]);
            cid[x][1] = Math.round(currentCid*100)/100;
          }
        }
        if (change == 0){ response = 'OPEN'; } 
        else { 
          response = 'INSUFFICIENT_FUNDS';
          result = [];
        }
  }
  var zero = 0;
  for (x in cid){
    if (cid[x][1] == 0){
      zero +=1
    }
  }
  if (zero == 9){
    response = 'CLOSED'
    cid = cid.reverse();
    var z;
    for (x in cid){
      if (cid[x] != result[x][0]){
        console.log(cid[x][0])
        console.log(result[x][0])
        result.push(cid[x]);
      }
    }
  }

  console.log('return:', {status: response, change: result})
  return {status: response, change: result}
}

checkCashRegister(19.5, 20, [["PENNY", 0.5], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 0], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]])
2

if (cid[x] != result[x][0]){

you can’t compare a string and an array.
cid[x] is an array, result[x][0] is a string
whatever you want to do with them, the comparison simply will not work.

3

Ok I said that wrong. I’m trying to compare a string element of one array to a string element of another array.

4

if one of the elements you are comparing is an array, but you want to compare the string inside it…
do you remember how to access elements inside an array?

6