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May 30, 2021 14:31
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FreeCodeCamp JavaScript Project
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| var denom = [ | |
| { name: 'ONE HUNDRED', val: 100.0 }, | |
| { name: 'TWENTY', val: 20.0 }, | |
| { name: 'TEN', val: 10.0 }, | |
| { name: 'FIVE', val: 5.0 }, | |
| { name: 'ONE', val: 1.0 }, | |
| { name: 'QUARTER', val: 0.25 }, | |
| { name: 'DIME', val: 0.1 }, | |
| { name: 'NICKEL', val: 0.05 }, | |
| { name: 'PENNY', val: 0.01 }, | |
| ]; | |
| function checkCashRegister(price, cash, cid) { | |
| var output = { status: null, change: [] }; | |
| var change = cash - price; | |
| var register = cid.reduce( | |
| function (acc, curr) { | |
| acc.total += curr[1]; | |
| acc[curr[0]] = curr[1]; | |
| return acc; | |
| }, | |
| { total: 0 } | |
| ); | |
| if (register.total === change) { | |
| output.status = 'CLOSED'; | |
| output.change = cid; | |
| return output; | |
| } | |
| if (register.total < change) { | |
| output.status = 'INSUFFICIENT_FUNDS'; | |
| return output; | |
| } | |
| var change_arr = denom.reduce(function (acc, curr) { | |
| var value = 0; | |
| while (register[curr.name] > 0 && change >= curr.val) { | |
| change -= curr.val; | |
| register[curr.name] -= curr.val; | |
| value += curr.val; | |
| change = Math.round(change * 100) / 100; | |
| } | |
| if (value > 0) { | |
| acc.push([curr.name, value]); | |
| } | |
| return acc; // Return the current change_arr | |
| }, []); | |
| if (change_arr.length < 1 || change > 0) { | |
| output.status = 'INSUFFICIENT_FUNDS'; | |
| return output; | |
| } | |
| output.status = 'OPEN'; | |
| output.change = change_arr; | |
| return output; | |
| } | |
| 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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