Test Case Explanation -Cash Register project

JavaScript
1 
Can anyone explain following test case Of Cash Register Project

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]]}` .


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User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.90 Safari/537.36`.

**Link to the challenge:**
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/cash-register
2

What part is confusing you?

3 
i am not getting how "change" key value pair is returned means on what basis
4

When you purchase something and pay more than the required amount, you get the difference back. This is called “change”.
For example: if you want to buy something that costs $1.50 and you hand over two $1 bills, then you will get 50 cents in change.

5

the purchase is 3.26, the customer gives 100 in cash. It means that the customer should get back 96.74$
the change is calculated based on the value the customer should get back and the physical cash in the drawer
so the customer is gonna get back 60$ in 20$ bills, 20$ in 10$ bills, 15$ in 5$ bills, 1$ in 1$ bills, 0.5$ in quarters, 0.2$ in dimes and 0.04$ in pennies

1 Like
6 
Thank you @ieahleen for explanation