function reverseAString(str) {
    //  write code here.
        // console.log(str);
    const letters = str.split('');
        // console.log(letters);
    const arrayLetters = [];    
        
    for(let i = 0; i < str.length; i++) {
        // console.log(i);
        arrayLetters.push(letters.pop());
            // console.log(arrayLetters);
    } 
    const answer =  arrayLetters.join('');
        // console.log(answer);
    return answer     
}



/**
* Test Suite 
*/
describe('reverseAString()', () => {
    it('returns original string reversed', () => {
        // arrange
        const str = 'hello';
        
        // act
        const result = reverseAString(str);

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