28 lines
577 B
JavaScript
28 lines
577 B
JavaScript
const calculator = {
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add: function (a, b) {
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return a + b;
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},
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subtract: function (a, b) {
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return a - b;
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},
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sum: function (array) {
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return array.reduce((total, current) => total + current, 0);
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},
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multiply: function (...args) {
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return args.reduce((product, current) => product * current, 1);
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},
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power: function (a, b) {
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return Math.pow(a, b);
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},
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factorial: function (n) {
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if (n === 0) return 1;
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let product = 1;
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for (let i = n; i > 0; i--) {
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product *= i;
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}
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return product;
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},
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};
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module.exports = calculator;
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