The 10-Day JS Challenge - Day 9: Case Insensitive Palindrome

largestNumber.js

const largestNumber = num => {
    result = '';

    for(let i = 1; i <= num; i++) {
        result += '9';
    }

    return parseInt(result);
};


describe('largestNumber()', () => {
    it('returns largest positive integer possible for digit count - 2', () => {
        const num = 2;
        const result = largestNumber(num);
        console.log("result: ", result);
        expect(result).toBe(99);
    });
    
    it('returns largest positive integer possible for digit count - 5', () => {
        const num2 = 5;
        const result2 = largestNumber(num2);
        console.log("result: ", result);
        expect(result2).toBe(99999);
    });
});