Files
shaka-player/lib/util/array_utils.js
T
Joey Parrish 4d9177240a Revert "Adding license annotation to js files."
This reverts commit 8cb24652cb, due to
the fact that the new annotations caused our binary size to jump
by 52%.

The compiler preserves all 'unique' licenses, which causes trouble
since the comment blocks with the license annotations are not unique
and contain file overview comments as well.

We can re-examine this once we have restructured the license headers.

Change-Id: I418e407a0e0253630633697f30cf496a7fc2ddfc
2015-09-04 18:36:39 -07:00

51 lines
1.4 KiB
JavaScript

/**
* Copyright 2014 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @fileoverview Array utility functions.
*/
goog.provide('shaka.util.ArrayUtils');
/**
* @namespace shaka.util.ArrayUtils
* @summary Array utility functions.
*/
/**
* Remove duplicate entries from an array.
* @param {!Array.<T>} array
* @param {function(T): (string|number)=} opt_keyFn An optional function which
* takes an array item and converts it into a key. Use this if your array
* items cannot be used as an index into an Object.
* @return {!Array.<T>} A sorted list of the keys.
* @template T
*/
shaka.util.ArrayUtils.removeDuplicates = function(array, opt_keyFn) {
var set = {};
for (var i = 0; i < array.length; ++i) {
var key = opt_keyFn ? opt_keyFn(array[i]) : array[i].toString();
set[key] = array[i];
}
var result = [];
for (var k in set) {
result.push(set[k]);
}
return result;
};