Bracket Matcher

Answers

function BracketMatcher(str) {
  let left = 0;
  let right = 0;

  let diff = 0;
  let mismatched = false;
  str
    .replace(/[^\(\)]/gi, '')
    .split('')
    .map(bracket => {
      if (bracket === '(') {
        diff++;
        left++;
      } else if (bracket === ')') {
        diff--;
        right++;
      }

      if (diff < 0) {
        mismatched = true;
      }
    });

  if (mismatched) return 0;
  return left === right ? 1 : 0;
}
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