cash register freecodecamp

const checkCashRegister = (price, cash, cid) => {  const UNIT_AMOUNT = {    "PENNY": .01,    "NICKEL": .05,    "DIME": .10,    "QUARTER": .25,    "ONE": 1.00,    "FIVE": 5.00,    "TEN": 10.00,    "TWENTY": 20.00,    "ONE HUNDRED": 100.00  }  let totalCID = 0;  for (let element of cid) {    totalCID += element[1];  }  totalCID = totalCID.toFixed(2);  let changeToGive = cash - price;  const changeArray = [];  if (changeToGive > totalCID) {    return { status: "INSUFFICIENT_FUNDS", change: changeArray };  } else if (changeToGive.toFixed(2) === totalCID) {    return { status: "CLOSED", change: cid };  } else {    cid = cid.reverse();    for (let elem of cid) {      let temp = [elem[0], 0];      while (changeToGive >= UNIT_AMOUNT[elem[0]] && elem[1] > 0) {        temp[1] += UNIT_AMOUNT[elem[0]];        elem[1] -= UNIT_AMOUNT[elem[0]];        changeToGive -= UNIT_AMOUNT[elem[0]];        changeToGive = changeToGive.toFixed(2);      }      if (temp[1] > 0) {        changeArray.push(temp);      }    }  }  if (changeToGive > 0) {    return { status: "INSUFFICIENT_FUNDS", change: [] };  }  return { status: "OPEN", change: changeArray};}