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sakilk130/cash-register-freecodecamp.js

Created May 30, 2021 14:31
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  1. sakilk130 revised this gist May 30, 2021. No changes.
  2. sakilk130 created this gist May 30, 2021.
    75 changes: 75 additions & 0 deletions cash-register-freecodecamp.js
    View file
    Original file line number Diff line number Diff line change
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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],
    ]);