7. Reverse Integer

gistfile1.txt

/**
 * @param {number} x
 * @return {number}
 */
var reverse = (x) => {
    if (x < 0) {
        return -1 * reverse(-x)
    }
    const solution = (x + "").split('').reverse().join('');
    return (solution > 2 ** 31 - 1) ? 0 : solution;
};

made public