3 var value = require('./valid-value')
5 , defineProperty = Object.defineProperty
6 , getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor
7 , getOwnPropertyNames = Object.getOwnPropertyNames
8 , getOwnPropertySymbols = Object.getOwnPropertySymbols;
10 module.exports = function (target, source) {
11 var error, sourceObject = Object(value(source));
12 target = Object(value(target));
13 getOwnPropertyNames(sourceObject).forEach(function (name) {
15 defineProperty(target, name, getOwnPropertyDescriptor(source, name));
16 } catch (e) { error = e; }
18 if (typeof getOwnPropertySymbols === 'function') {
19 getOwnPropertySymbols(sourceObject).forEach(function (symbol) {
21 defineProperty(target, symbol, getOwnPropertyDescriptor(source, symbol));
22 } catch (e) { error = e; }
25 if (error !== undefined) throw error;