39 lines
1005 B
JavaScript
39 lines
1005 B
JavaScript
|
define([
|
||
|
|
'./defaultValue'
|
||
|
|
], function(
|
||
|
|
defaultValue) {
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clones an object, returning a new object containing the same properties.
|
||
|
|
*
|
||
|
|
* @exports clone
|
||
|
|
*
|
||
|
|
* @param {Object} object The object to clone.
|
||
|
|
* @param {Boolean} [deep=false] If true, all properties will be deep cloned recursively.
|
||
|
|
* @returns {Object} The cloned object.
|
||
|
|
*/
|
||
|
|
function clone(object, deep) {
|
||
|
|
if (object === null || typeof object !== 'object') {
|
||
|
|
return object;
|
||
|
|
}
|
||
|
|
|
||
|
|
deep = defaultValue(deep, false);
|
||
|
|
|
||
|
|
var result = new object.constructor();
|
||
|
|
for ( var propertyName in object) {
|
||
|
|
if (object.hasOwnProperty(propertyName)) {
|
||
|
|
var value = object[propertyName];
|
||
|
|
if (deep) {
|
||
|
|
value = clone(value, deep);
|
||
|
|
}
|
||
|
|
result[propertyName] = value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
return clone;
|
||
|
|
});
|