Cash Register Not understanding the test cases

JavaScript
1

Tell us what’s happening:
I am not understanding the meaning of this line
Otherwise, return {status: "OPEN", change: [...]} , with the change due in coins and bills, sorted in highest to lowest order, as the value of the change key.
If the amount given back is 0.5 (20 - 19.5), that can be paid using penny, nickel or dime …
why the answer is 0.5 quarter.
we can pay the 0.5 using 100 nickel it will sum to 0.5 i.e 100 * 0.05 = 0.5
plzz help

Your code so far


function checkCashRegister(price, cash, cid) {
  var change;
  // Here is your change, ma'am.
  return change;
}

// Example cash-in-drawer array:
// [["PENNY", 1.01],
// ["NICKEL", 2.05],
// ["DIME", 3.1],
// ["QUARTER", 4.25],
// ["ONE", 90],
// ["FIVE", 55],
// ["TEN", 20],
// ["TWENTY", 60],
// ["ONE HUNDRED", 100]]

checkCashRegister(19.5, 20, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.1], ["QUARTER", 4.25], ["ONE", 90], ["FIVE", 55], ["TEN", 20], ["TWENTY", 60], ["ONE HUNDRED", 100]]);

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Link to the challenge:

2

["QUARTER", 0.5] means that all quarters summed have a value of 0.5$

if you want to give it in nickels it is ["NICKEL", 0.5]

it is not the number of coins, it is the value of coins in that denomination

3

So, why the particular test return [“Quarter”, 0.5] not the [“Nickel”, 0.5] , this thing just blown my mind

4

it depends on how much of each is in the register before.

5

there are 1.01 penny, 2.05 Nickel and 3.1 Dime in the register which is greater than 0.5i.e
1.01 > 0.5 etc…

6

have you tried creating an algorithm for it?

7

If I got understand why its returning the specific answer then I will definetily create an algo for it…

8

it is the highest denomination with which you can give that change