forked from react/react
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathmemoizeStringOnly.js
More file actions
32 lines (29 loc) · 799 Bytes
/
Copy pathmemoizeStringOnly.js
File metadata and controls
32 lines (29 loc) · 799 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
/**
* Copyright 2013-2014, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule memoizeStringOnly
* @typechecks static-only
*/
"use strict";
/**
* Memoizes the return value of a function that accepts one string argument.
*
* @param {function} callback
* @return {function}
*/
function memoizeStringOnly(callback) {
var cache = {};
return function(string) {
if (cache.hasOwnProperty(string)) {
return cache[string];
} else {
return cache[string] = callback.call(this, string);
}
};
}
module.exports = memoizeStringOnly;