A Pen by Keili Olsen.

script.js

!(function($, window) {

	window.__ = {

	};

	__.extend = function extend() {
		if (!arguments.length) return false;

		var obj = arguments[0];
		for (var i = 1, max = arguments.length; i < max; i++) {
			var arg = arguments[i];
			for (var key in arg) {
				if (arg.hasOwnProperty(key)) {
					obj[key] = arg[key];
				}
			}
		}
		return obj;
	};

	__.define = function define(obj) {
		var cons = function constructor(data) {
			var _this = this;
			data = __.extend({}, obj, data);

			var methods = {};

			function getterSetter(attrName, value) {
				if (arguments.length === 1) {
					return data[attrName];
				}
				return data['__' + attrName] = value;
			}

			for (var key in data) {

				var val = data[key];

				if (val instanceof Function) {
					methods[key] = [data[key]];

					_this[key] = function() {
						var args = arguments;
						methods[key].forEach(function(method, idx) {
							console.log(args);
							var result = method.apply(_this, args);
							if (result === false) {
								return false;
							}
						});
					}
				} else {
					_this[key] = getterSetter.bind(_this, key);
				}

			}

			_this.toJson = function(propNames) {
				if (!propNames) {
					return JSON.stringify(data);
				}
				var result = {};
				for (var key in propNames) {
					var propName = propNames[key];
					result[propName] = data[propName];
				}
				return JSON.stringify(result);
			};

		};

		return cons;
	};

})(jQuery, this);


$(function() {
	var Claz = __.define({
		x: 23,
		y: 42,
		message: 'howdy',
		func: function() {
			console.log('func ', arguments);
		}
	});

	var claz = window.claz = new Claz();

	// test getter
	console.log('using getter');
	console.log(claz.x());
	// test setter
	console.log('using setter');
	claz.x(55);
	console.log(claz.x());

	// test json
	console.log('full json data');
	console.log(claz.toJson());

	// test selective json
	console.log('partial json data');
	console.log(claz.toJson(['message', 'x']));

	// test wrapped function
	claz.func(1, 2, 3);
});

Test-for-auto-wrapped-privates.markdown

Test for auto-wrapped privates

Ooo err... :-\

A Pen by Keili Olsen on CodePen.

License.