framedoubt / cash-register-function

Cash Register

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Design a cash register drawer function checkCashRegister() that accepts purchase price as the first argument (price), payment as the second argument (cash), and cash-in-drawer (cid) as the third argument.

cid is a 2D array listing available currency.

The checkCashRegister() function should always return an object with a status key and a change key.

Return {status: "INSUFFICIENT_FUNDS", change: []} if cash-in-drawer is less than the change due, or if you cannot return the exact change.

Return {status: "CLOSED", change: [...]} with cash-in-drawer as the value for the key change if it is equal to the change due.

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.

Currency	Unit	Amount
Penny	$0.01	(PENNY)
Nickel	$0.05	(NICKEL)
Dime	$0.1	(DIME)
Quarter	$0.25	(QUARTER)
Dollar	$1	(ONE)
Five Dollars	$5	(FIVE)
Ten Dollars	$10	(TEN)
Twenty Dollars	$20	(TWENTY)
One-hundred Dollars	$100	(ONE HUNDRED)
See below for an example of a 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]
  ]