Here's the solution I came up with for this interview question on interviewcake.com: "I like parentheticals (a lot). "Sometimes (when I nest them (my parentheticals) too much (like this (and this))) they get confusing." Write a function that, given a sentence like the above, along with the position of an opening parenthesis, finds the correspond…

parenthetical-solution.js

// I enjoy doing interview questions just because they make my brain feel better.
// Here's the solution I came up with for this interview question on interviewcake.com
// http://www.interviewcake.com/question/matching-parens

var str = 'Sometimes (when I nest them (my parentheticals) too much (like this (and this))) they get confusing.';

findMyMate(str, '(', ')', 10);

/**
  * Find the mate of a given character
  * @param {str}    sentence      The string we want to search in
  * @param {str}    character     What we want to match
  * @param {str}    mate          What we want to match against
  * @param {int}    place         The place of the character to start with
  *
  */
function findMyMate(sentence, character, mate, place) {
  var i = 0,
      len = sentence.length,
      search = '';
  
  for(len; place < len; place++) {
    search += sentence[place];
    if(sentence[place] === character) {
      i++;
    } else if(sentence[place] === mate) {
      i--;
    }
    
    if(i === 0) {
      console.log(place);
      return;
    }
  }
}