Javascript Writing Method (4) -- convert

Transferred from:Http://www.cnblogs.com/snandy/archive/2011/03/07/1973241.html

 

The tool functions are as follows:

01

/**

02	* $ Class write tool function 3

03	* @param {String} className

04	* @param {Function} superClass

05	* @param {Function} classImp

06

*/

07	function $class(className, superClass, classImp){

08	if(superClass === "") superClass = Object;

09

10	function clazz(){

11	if(typeof this.init == "function"){

12	this.init.apply(this, arguments);

13

}

14

}

15

16	var p = clazz.prototype = new superClass();

17	var _super = superClass.prototype;

18	window[className] = clazz;

19	classImp.apply(p, [_super]);

20

}

 

Define a person class

01	$class('Person', '', function(){

02	// Constructor

03	this.init = function(name){

04	this.name = name;

05

};

06	// Method body

07	this.getName = function(){

08	return this.name;

09

};

10	this.setName = function(name){

11	this.name = name;

12

};

13

});

Create an object

1	var p = new Person('Jack');

2	console.log(p);

3	console.log(p.constructor == Person); // false

Use this tool to write classes. This. init method is essential. Students who have used prototype Libraries know that the initialize method after class. Create is also essential.

Because inheritance is not considered, the second parameter superclass uses an empty string, that is, it inherits from the object by default.

If the output is false, this tool class does not maintain the constructor attribute. Each write type of the design has a trade-off, which is entirely dependent on the intent of the designer.

 

The tool functions are as follows:

01

/**

02	* $ Class write tool function 3

03	* @param {String} className

04	* @param {Function} superClass

05	* @param {Function} classImp

06

*/

07	function $class(className, superClass, classImp){

08	if(superClass === "") superClass = Object;

09

10	function clazz(){

11	if(typeof this.init == "function"){

12	this.init.apply(this, arguments);

13

}

14

}

15

16	var p = clazz.prototype = new superClass();

17	var _super = superClass.prototype;

18	window[className] = clazz;

19	classImp.apply(p, [_super]);

20

}

 

Define a person class

01	$class('Person', '', function(){

02	// Constructor

03	this.init = function(name){

04	this.name = name;

05

};

06	// Method body

07	this.getName = function(){

08	return this.name;

09

};

10	this.setName = function(name){

11	this.name = name;

12

};

13

});

Create an object

1	var p = new Person('Jack');

2	console.log(p);

3	console.log(p.constructor == Person); // false

Use this tool to write classes. This. init method is essential. Students who have used prototype Libraries know that the initialize method after class. Create is also essential.

Because inheritance is not considered, the second parameter superclass uses an empty string, that is, it inherits from the object by default.

If the output is false, this tool class does not maintain the constructor attribute. Each write type of the design has a trade-off, which is entirely dependent on the intent of the designer.