Balanced Brackets

checkBalancedBrackets.js

function checkBalance(s) {
    if (s.length % 2 !== 0) return false;

    if (s.length === 0) return true;

    var pairs = ['[]', '()', '{}'],
        r0 = s.split(pairs[0]),
        r1 = s.split(pairs[1]),
        r2 = s.split(pairs[2]);

    if (r0.length > 1) return checkBalance(r0.join(''));
    if (r1.length > 1) return checkBalance(r1.join(''));
    if (r2.length > 1) return checkBalance(r2.join(''));

    return false;
}