shim/object module

requires

  • Object() class

    global

    static methods

    • Object.keys(object:object) returns array

      Returns an array of an object's own enumerable properties

      shim

    • Object.create(proto:object) returns object

      Create a new object with given prototype

      shim

code

/* istanbul ignore if */
if (typeof define !== "function") {
	var define = require("amdefine")(module);
}

define(function (require) {
	"use strict";

	require("../class/shim");

	var meta = require("../meta");

	meta({
		"name": "Object",
		"type": "class",
		"global": true
	});

	meta({
		"name": "keys",
		"static": true,
		"shim": true,
		"description": "Returns an array of an object's own enumerable properties",
		"arguments": [{
			"name": "object",
			"type": "object"
		}],
		"returns": "array"
	});

	meta({
		"name": "create",
		"static": true,
		"shim": true,
		"description": "Create a new object with given prototype",
		"arguments": [{
			"name": "proto",
			"type": "object"
		}],
		"returns": "object"
	});

	var shims = {};

	shims.keys = function(object) {
		throwIfNonObject(object);

		return getKeys(object);
	};

	shims.create = function (proto) {
		Surrogate.prototype = proto;

		return new Surrogate();
	};

	function Surrogate () {}

	function getKeys (object) {
		var keys = [],
			key;

		for (key in object) {

			if (object.hasOwnProperty(key)) {
				keys.push(key);
			}
		}

		return keys;
	}

	function throwIfNonObject (object) {
		if (isNonObject(object)) {
			throw new TypeError("Object.keys called on non-object");
		}
	}

	function isNonObject (value) {
		var type = typeof value;
		return value === null || (type !== "object" && type !== "function");
	}

	Object.shimStatic("keys", shims.keys);
	Object.shimStatic("create", shims.create);

	return shims;
});

modules

Page built with api-meta