Using apply function to call base constructor : Inheritance « Object Oriented « JavaScript Tutorial

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JavaScript Tutorial » Object Oriented » Inheritance

25. 9. 9. Using apply function to call base constructor


<html>

<head>

<title>Example</title>

</head>

<body>

<script type="text/javascript">

function BaseClass(sColor) {

    this.color = sColor;

    this.sayColor = function () {

        alert(this.color);

    };

}



function SubClass(sColor, sName) {

    BaseClass.apply(this, arguments);

    this.name = sName;

    this.sayName = function () {

        alert(this.name);

    };

}



var objA = new BaseClass("red");

var objB = new SubClass("blue", "MyName");

objA.sayColor();

objB.sayColor();

objB.sayName();



</script>



</body>

</html>

25. 9. Inheritance
	25. 9. 1.	Inheritance
	25. 9. 2.	Adding new properties and methods to the child class
	25. 9. 3.	The Call() Method
	25. 9. 4.	Using 'call method' to call the constructor of base class
	25. 9. 5.	The Apply() Method
	25. 9. 6.	Using 'apply method' to call the constructor of the base class
	25. 9. 7.	Prototype Chaining
	25. 9. 8.	All new properties and methods of the subclass must come after the assignment of the prototype property
	25. 9. 9.	Using apply function to call base constructor
	25. 9. 10.	Using call function to call the constructor from base class
	25. 9. 11.	Three-level inheritance
	25. 9. 12.	Using xbObjects to call the function from base class
	25. 9. 13.	Using xbObjects to build three-level inheritance
	25. 9. 14.	Hybrid Method for class inheritance
	25. 9. 15.	Three level inheritance by using the Hybrid Method
	25. 9. 16.	Class Inheritance

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