JSFiddle - React, Tailwind, and code Playground

JavaScript

module.exports = Parentheses = (function() {
  var _isParenthesesMatch = function(str) {
    var parentheses = str.length;
    var rightParentheses = '(';
    var leftParentheses = ')';
    var rightCount = 0;
    var leftCount = 0;

    for(i=0;i<=str.length;i++){
       if(rightParentheses == str.charAt(i))
       {
          rightCount++;
       }
       else if(leftParentheses == str.charAt(i))
       {
          leftCount++;
       }
    }

    if(rightCount == leftCount){
      return true;
    }
    else(rightCount != leftCount){
      return false;
    }

  }
  
}());