radixTree_cr.js

  /**
  * @desc Convert an array of strings to a radix tree 
  * @param {Array}
  * @returns {Object}
  */
  function radixTree(stringArray) {
    return stringArray.reduce(function(result, string) {
      var characters = string.split(''),
          pointer = result; 

      characters.forEach(function(char) {
        pointer[char] = pointer[char] || {};
        pointer = pointer[char];
      });
      return result; 
    }, {});
  }