Created
November 5, 2016 18:18
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Exact Change
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Exact Change</title> | |
| <script> | |
| // Create an object which hold the denominations and their values | |
| var denominations = [ | |
| {name: 'ONE HUNDRED', val: 100.00}, | |
| {name: 'TWENTY', val: 20.00}, | |
| {name: 'TEN', val: 10.00}, | |
| {name: 'FIVE', val: 5.00}, | |
| {name: 'ONE', val: 1.00}, | |
| {name: 'QUARTER', val: 0.25}, | |
| {name: 'DIME', val: 0.10}, | |
| {name: 'NICKEL', val: 0.05}, | |
| {name: 'PENNY', val: 0.01} | |
| ]; | |
| function checkCashRegister(price, cash, cid) { | |
| var change = cash - price; | |
| var totalCid = cid.reduce(function (acc, next) { | |
| return acc + next[1]; | |
| }, 0.0); | |
| if (totalCid < change) { | |
| return "Insufficient Funds"; | |
| } else if (totalCid === change) { | |
| return "Closed"; | |
| } | |
| cid = cid.reverse(); | |
| var result = denominations.reduce(function (acc, next, index) { | |
| if (change >= next.val) { | |
| var currentValue = 0.0; | |
| while (change >= next.val && cid[index][1] >= next.val) { | |
| currentValue += next.val; | |
| change -= next.val; | |
| change = Math.round(change * 100) / 100; | |
| cid[index][1] -= next.val; | |
| } | |
| acc.push([next.name, currentValue]); | |
| return acc; | |
| } else { | |
| return acc; | |
| } | |
| }, []); | |
| // console.log(result); | |
| return result.length > 0 && change === 0 ? result : "Insufficient Funds"; | |
| } | |
| checkCashRegister(19.50, 20.00, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.10], ["QUARTER", 4.25], ["ONE", 90.00], ["FIVE", 55.00], ["TEN", 20.00], ["TWENTY", 60.00], ["ONE HUNDRED", 100.00]]); | |
| </script> | |
| </head> | |
| <body> | |
| </body> | |
| </html> |
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