fuse-box/modules/object-assign-polyfill/index.js

Fuse-Box a bundler that does it right

if (typeof Object.assign != "function") {
	Object.assign = function(target, varArgs) {
		// .length of function is 2
		"use strict";
		if (target == null) {
			// TypeError if undefined or null
			throw new TypeError("Cannot convert undefined or null to object");
		}

		var to = Object(target);

		for (var index = 1; index < arguments.length; index++) {
			var nextSource = arguments[index];

			if (nextSource != null) {
				// Skip over if undefined or null
				for (var nextKey in nextSource) {
					// Avoid bugs when hasOwnProperty is shadowed
					if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
						to[nextKey] = nextSource[nextKey];
					}
				}
			}
		}
		return to;
	};
}