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Add math helpers, tests and checks1const assert = require("node:assert");
2const math = require("./math");
3
4assert.strictEqual(math.add(2, 3), 5);
Merge #3: Add multiply to math.js5assert.strictEqual(math.multiply(4, 5), 20);
Add divide to math.js6assert.strictEqual(math.divide(10, 4), 2.5);
7assert.throws(() => math.divide(1, 0), RangeError);
Catch up with main8assert.strictEqual(math.power(2, 10), 1024);
9assert.strictEqual(math.power(5, 0), 1);
10assert.throws(() => math.power(2, -1), RangeError);
Catch up with main11assert.strictEqual(math.mean([1, 2, 3, 4]), 2.5);
12assert.strictEqual(math.median([3, 1, 2]), 2);
13assert.strictEqual(math.median([4, 1, 3, 2]), 2.5);
14assert.strictEqual(math.standard_deviation([2, 4, 4, 4, 5, 5, 7, 9]), 2);
15for (const fn of [math.mean, math.median, math.standard_deviation]) {
16 assert.throws(() => fn([]), TypeError);
17}
Add math helpers, tests and checks18console.log("all tests passed");

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