39 lines
715 B
JavaScript
39 lines
715 B
JavaScript
const add = function (...numbers) {
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return numbers.reduce((res, cur) => res + cur, 0)
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}
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const subtract = function (...numbers) {
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return numbers.reduce((res, cur) => res - cur)
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}
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const sum = function (numbers) {
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return add(...numbers)
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}
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const multiply = function (...numbers) {
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return numbers.reduce((res, cur) => res * cur)
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}
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const power = function (...numbers) {
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return numbers.reduce((res, cur) => res ** cur)
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}
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const factorial = function (number) {
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if (number < 0) {
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return -1
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} else if (number === 0) {
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return 1
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} else {
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return number * factorial(number - 1)
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}
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}
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// Do not edit below this line
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module.exports = {
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add,
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subtract,
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sum,
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multiply,
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power,
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factorial,
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}
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