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1var _Object$defineProperty = require("../core-js/object/define-property");
2
3var _Object$getOwnPropertyDescriptor = require("../core-js/object/get-own-property-descriptor");
4
5var _Object$getOwnPropertyNames = require("../core-js/object/get-own-property-names");
6
7function _defaults(obj, defaults) {
8 var keys = _Object$getOwnPropertyNames(defaults);
9
10 for (var i = 0; i < keys.length; i++) {
11 var key = keys[i];
12
13 var value = _Object$getOwnPropertyDescriptor(defaults, key);
14
15 if (value && value.configurable && obj[key] === undefined) {
16 _Object$defineProperty(obj, key, value);
17 }
18 }
19
20 return obj;
21}
22
23module.exports = _defaults;
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