function assocSet(array, key, value) {
	  var index = assocIndexOf(array, key);
	  if (index < 0) {
	    array.push([key, value]);
	  } else {
	    array[index][1] = value;
	  }
	}
Sets the associative array `key` to `value`.

@private
@param {Array} array The array to modify.
@param {string} key The key of the value to set.
@param {*} value The value to set.