Who can help me with algoritm and data structure in Cash Register quiz?

JavaScript
1

Hello every one) I have wroten a function to pass Cash Register quiz, but still I can not pass some tests:

checkCashRegister(3.26, 100, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.1], ["QUARTER", 4.25], ["ONE", 90], ["FIVE", 55], ["TEN", 20], ["TWENTY", 60], ["ONE HUNDRED", 100]]) should return {status: "OPEN", change: [["TWENTY", 60], ["TEN", 20], ["FIVE", 15], ["ONE", 1], ["QUARTER", 0.5], ["DIME", 0.2], ["PENNY", 0.04]]}

checkCashRegister(19.5, 20, [["PENNY", 0.01], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 1], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]]) should return {status: "INSUFFICIENT_FUNDS", change: []}

//MY FUNC:
function checkCashRegister(price, cash, cid) {
let buying = cash - price;
let start=0
let acum = cid.map(el=>{
  start = start+el[1]
})

console.log(buying,start)


let resultArr=[];
cid= cid.reverse();
// Example cash-in-drawer array:
let cashArr =[["PENNY", 0.01],
["NICKEL", 0.05],
["DIME", 0.1],
["QUARTER", 0.25],
["Dollar", 1],
["Five Dollars", 5],
["TEN", 10],
["TWENTY", 20],
["ONE HUNDRED", 100]]

  cashArr=cashArr.reverse()


  if (buying>start ) {
  return {status: "INSUFFICIENT_FUNDS", change: []}
} else if (buying==start) {
   return {status: "CLOSED", change: cid.reverse()}
}
    function makeArr(arr, buying) {
      arr.map((el,i) => {
       
        if(cashArr[i][1]<=buying && arr[i][1]!==0){
          
          resultArr.push([el[0],buying>el[1]? el[1]: Math.abs(((el[1]-buying)-el[1]))])
          return makeArr(arr.splice(i), buying)
        } else  {
          return {status: "INSUFFICIENT_FUNDS", change: []}
        }
        

      });
    }
  
    makeArr(cid, buying);
    console.log(resultArr);
  
return {status: "OPEN", change: resultArr}
}

What needs to be done for the function to work?

2

What do the failing tests say?

3

// running tests

checkCashRegister(3.26, 100, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.1], ["QUARTER", 4.25], ["ONE", 90], ["FIVE", 55], ["TEN", 20], ["TWENTY", 60], ["ONE HUNDRED", 100]])

should return

{status: "OPEN", change: [["TWENTY", 60], ["TEN", 20], ["FIVE", 15], ["ONE", 1], ["QUARTER", 0.5], ["DIME", 0.2], ["PENNY", 0.04]]}

.

checkCashRegister(19.5, 20, [["PENNY", 0.01], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 1], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]])

should return

{status: "INSUFFICIENT_FUNDS", change: []}

. // tests completed // console output 0.5 335.40999999999997 [[“QUARTER”,0.5]]

4 
[["PENNY", 0.01],
["NICKEL", 0.05],
["DIME", 0.1],
["QUARTER", 0.25],
["Dollar", 1],
["Five Dollars", 5],
["TEN", 10],
["TWENTY", 20],
["ONE HUNDRED", 100]]

One of these things is not like the others…
(Two, actually)