function sortByLength(strs) {
    // With method
    //return strs.sort((stringOne, stringTwo) => stringOne.length - stringTwo.length);
    // With insertion sort
    for(let i = 1; i < strs.length; i++) {
        let j = i;
        let toInsert = strs[i];
        while((j > 0) && (strs[j - 1].length > toInsert.length)) {
            strs[j] = strs[j-1];
            j--;
        }
        strs[j] = toInsert;
    }
    return strs;
}



/**
* Test Suite 
*/
describe('sortByLength()', () => {
    it('sorts the strings from shortest to longest', () => {
        // arrange
        const strs = ["abc", "", "aaa", "a", "zz"];
        
        // act
        const result = sortByLength(strs);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toEqual(["", "a", "zz", "abc", "aaa"]);
    });
});