The 10-Day JS Challenge - Day 10: Max Multiple

maxMultiple.js

const maxMultiple = (divisor, bound) => {
    let result = divisor;
    
    for (let i = divisor; i <= bound; i *= divisor) {
        result = i;
    }

    return result;
}

describe('maxMultiple()', () => {
    it('returns largest integer up to boundary - 3', () => {
        // arrange
        const divisor = 3;
        const bound = 10;
        
        // act
        const result = maxMultiple(divisor, bound);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toBe(9);
    });
    
    it('returns largest integer up to boundary - 12', () => {
        // arrange
        const divisor = 12;
        const bound = 250000;
        
        // act
        const result = maxMultiple(divisor, bound);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toBe(248832);
    });
});