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| Add math helpers, tests and checks | 1 | // Small helpers for numbers. |
| Merge #3: Add multiply to math.js | 2 | /** Returns the sum of a and b. */ |
| Add math helpers, tests and checks | 3 | function add(a, b) { |
| 4 | return a + b; | |
| 5 | } | |
| 6 | ||
| Merge #3: Add multiply to math.js | 7 | /** Returns the product of a and b. */ |
| 8 | function multiply(a, b) { | |
| 9 | return a * b; | |
| 10 | } | |
| 11 | ||
| Add power function to math.js | 12 | /** Returns base raised to the whole-number exponent; throws a RangeError if exponent is negative. */ |
| 13 | function power(base, exponent) { | |
| 14 | if (exponent < 0) { | |
| 15 | throw new RangeError("exponent must not be negative"); | |
| 16 | } | |
| 17 | let result = 1; | |
| 18 | for (let i = 0; i < exponent; i++) { | |
| 19 | result *= base; | |
| 20 | } | |
| 21 | return result; | |
| 22 | } | |
| 23 | ||
| 24 | module.exports = { add, multiply, power }; |
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