25 lines
578 B
JavaScript
25 lines
578 B
JavaScript
|
define([
|
||
|
|
'./defined'
|
||
|
|
], function(
|
||
|
|
defined) {
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Freezes an object, using Object.freeze if available, otherwise returns
|
||
|
|
* the object unchanged. This function should be used in setup code to prevent
|
||
|
|
* errors from completely halting JavaScript execution in legacy browsers.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
*
|
||
|
|
* @exports freezeObject
|
||
|
|
*/
|
||
|
|
var freezeObject = Object.freeze;
|
||
|
|
if (!defined(freezeObject)) {
|
||
|
|
freezeObject = function(o) {
|
||
|
|
return o;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
return freezeObject;
|
||
|
|
});
|