codetrix/dist/__tests/number/roundTo.test.js

A lightweight lodash-style utility library

import { roundTo } from "../../number";
describe('roundTo', () => {
    it('should round to the nearest decimal place', () => {
        expect(roundTo(3.14159, 2)).toBe(3.14);
        expect(roundTo(3.1459, 3)).toBe(3.146);
        expect(roundTo(3.9, 0)).toBe(4);
    });
    it('should round to nearest integer using default decimals = 0', () => {
        const result = roundTo(4.6);
        expect(result).toBe(5);
    });
});