ECMAScript 5: Tamper proofing objects

	var o = {
	foo: "bar"
	};
	// adding a new property normally:
	o.hey = "guys";
	// preventing further extensions:
	Object.preventExtensions(o);
	// silent error, or TypeError under strict mode:
	o.anotherProp = "This will fail!";
	// existing properties can still be changed:
	o.hey = "gals";
	var o = {
	foo: "bar"
	};
	// adding a new property normally:
	o.hey = "guys";
	// deleting a property normally:
	delete o.hey;
	// sealing the object:
	Object.seal(o);
	// silent failure, or TypeError under strict mode:
	o.anotherProp = "This will fail!";
	// existing properties can still be changed if they were writable:
	o.foo = "baz";
	// silent failure, or TypeError under strict mode:
	delete o.foo;
	//We can do everything Object.seal does, but also protect data properties
	//from being overwritten by using the Object.freeze method.
	var o = {
	foo: "bar"
	};
	// adding a new property normally:
	o.hey = "guys";
	// deleting a property normally:
	delete o.hey;
	// sealing the object:
	Object.freeze(o);
	// silent failures, or TypeErrors under strict mode:
	o.anotherProp = "This will fail!";
	o.foo = "baz";
	delete o.foo;
	var o = { foo: "bar" };
	Object.preventExtensions(o);
	Object.defineProperty(o, "foo", {
	writable: false,
	configurable: false
	});
	// Object.isFrozen(o) === true
	//http://www.jimmycuadra.com/posts/ecmascript-5-tamper-proofing-objects

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