Function baseIndexOf

MathBox/mathbox-bundle.js:35304–35314

* The base implementation of `_.indexOf` without support for binary searches * or `fromIndex` constraints. * * @private * @param {Array} array The array to search. * @param {*} value The value to search for. * @param {number} [fromIndex=0] The index to search from. * @returns {n

(array, value, fromIndex)

   * @returns {number} Returns the index of the matched value or `-1`.
   */
  function baseIndexOf(array, value, fromIndex) {
    var index = (fromIndex || 0) - 1,
        length = array ? array.length : 0;

    while (++index < length) {
      if (array[index] === value) {
        return index;
      }
    }
    return -1;
  }

  /**
   * An implementation of `_.contains` for cache objects that mimics the return