How to call javascript object method from within object

**dmjpro** · Sep 13 '07, 12:01 PM

Originally posted by Eyeinstyin

[CODE=javascript]
function Circle(radius)
{
this.radius=rad ius;
this.area=0;
}
Circle.prototyp e.area=function ()
{
if(radius>=1)
this.area=this. radius*(i want to call circumference with argument=false)/2
else
this.area=this. radius*(i want to call circumference with argument=true)/2
}
Circle.prototyp e.circumference =function(varia ble)
{
if(variable)
return 0;
else
return 2*3.14*(this.ra dius)*(this.rad ius);
}
[/CODE]
this is just example .i dont need alternate code; but;how do i call circumfernce method.thats all And sorry if i posted wrong way or wrong format

Welcome to TSDN!
I think you so much advanced in JavaScript.
This is OOP supported bu JavaScript.
So you can call it as happens in OOP.
Anyway...!
Try this, it will work.

[code=javascript]
var c = new Circle(100);
//now to call circumfernce method.
c.circumfernce( );
[/code]

That's All.
Good Luck.

Kind regards,
Dmjpro.

**Eyeinstyin** · Sep 13 '07, 12:08 PM

Originally posted by dmjpro

Welcome to TSDN!
I think you so much advanced in JavaScript.
This is OOP supported bu JavaScript.
So you can call it as happens in OOP.
Anyway...!
Try this, it will work.

[code=javascript]
var c = new Circle(100);
//now to call circumfernce method.
c.circumfernce( );
[/code]

That's All.
Good Luck.

Kind regards,
Dmjpro.

Please refer my code.I want to call the object function(circum ference) from within that object function(radius ).Please help me if u can...

**gits** · Sep 13 '07, 12:09 PM

hi ...

i give an example and you will see what to do:

[CODE=javascript]
function OBJ() {
}

OBJ.prototype.m ethod_a = function(params ) {
}

OBJ.prototype.m ethod_b = function() {
// we want to call method a here:
this.method_a(p arams);
}
[/CODE]
kind regards

**dmjpro** · Sep 13 '07, 12:16 PM

hi ...........Eyei nstyin!

Did you mean that what Gits says.

Kind regards,
Dmjpro.

**Eyeinstyin** · Sep 13 '07, 12:28 PM

Originally posted by gits

hi ...

i give an example and you will see what to do:

[CODE=javascript]
function OBJ() {
}

OBJ.prototype.m ethod_a = function(params ) {
}

OBJ.prototype.m ethod_b = function() {
// we want to call method a here:
this.method_a(p arams);
}
[/CODE]
kind regards

Thnx That work.Thanx both of u.Reply was quick
But what i want is "onmousecli ck" event the object method should be called
I specify as follows this.onmousecli ck=function(){ "function name"}.
But how do i put the function of object for eg
this.onmousecli ck=this.circumf erence(variable );//directly call circumference instead of calling it on mouseclick

**gits** · Sep 13 '07, 12:41 PM

hi ...

its like a static call ... use:

Code:

onclick="OBJ.prototype.method_b(your_param_value);"

kind regards

**gits** · Sep 13 '07, 12:43 PM

ahhrg ... i think i misunderstood your question? ... please give an example and specify what you want to do exactly ... post sample code please.

kind regards

**Eyeinstyin** · Sep 13 '07, 01:09 PM

[CODE=html]
<html>
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
function fdiv(argument)
{
this.element=do cument.createEl ement('div');
this.element.in nerHTML="100";
this.func=this. Function1;

//*************** *************** *************** *************** *****
// this.element.on click=this.Func tion(argument); //i want this i.e i want to call Function1 with argument when i click the div
//*************** *************** *************** *************** ******8
this.element.st yle.backgroundC olor="RED";
document.body.a ppendChild(this .element);
}
fdiv.prototype. Function1=funct ion(argument)
{
if(argument)
this.Function2( argument);
else
this.Function2( argument);
}
fdiv.prototype. Function2=funct ion(argument)
{
alert(parseInt( this.element.in nerHTML)+parseI nt(argument));
}
var temp=new fdiv(2);
</script>

</body>
</html>
[/CODE]
DIV is ready.When div is clicked Function1 is to be called

**gits** · Sep 13 '07, 02:11 PM

hi ...

i see ... try this:

[HTML]<html>
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
function fdiv(argument)
{
this.element=do cument.createEl ement('div');
this.element.in nerHTML="100";
this.func=this. Function1;

// we need this to fix the scope in the anonymous function
// that is used for onclick
var me = this;

// use an anonymous function here
this.element.on click = function() { me.Function1(ar gument); };

this.element.st yle.backgroundC olor="RED";

document.body.a ppendChild(this .element);
}

fdiv.prototype. Function1=funct ion(argument)
{
if(argument)
this.Function2( argument);
else
this.Function2( argument);
}

fdiv.prototype. Function2=funct ion(argument)
{
alert(parseInt( this.element.in nerHTML)+parseI nt(argument));
}

var temp=new fdiv(2);
</script>

</body>
</html>
[/HTML]
kind regards

**Eyeinstyin** · Sep 13 '07, 08:15 PM

Originally posted by gits

hi ...

i see ... try this:

[HTML]<html>
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
function fdiv(argument)
{
this.element=do cument.createEl ement('div');
this.element.in nerHTML="100";
this.func=this. Function1;

// we need this to fix the scope in the anonymous function
// that is used for onclick
var me = this;

// use an anonymous function here
this.element.on click = function() { me.Function1(ar gument); };

this.element.st yle.backgroundC olor="RED";

document.body.a ppendChild(this .element);
}

fdiv.prototype. Function1=funct ion(argument)
{
if(argument)
this.Function2( argument);
else
this.Function2( argument);
}

fdiv.prototype. Function2=funct ion(argument)
{
alert(parseInt( this.element.in nerHTML)+parseI nt(argument));
}

var temp=new fdiv(2);
</script>

</body>
</html>
[/HTML]
kind regards

no other way huh.creating dummy variable ....

**gits** · Sep 13 '07, 08:28 PM

what do you mean? ... the me-variable? it is a common way to fix the execution context for anonymous functions ...

kind regards

**Eyeinstyin** · Sep 14 '07, 05:52 AM

Originally posted by gits

what do you mean? ... the me-variable? it is a common way to fix the execution context for anonymous functions ...

kind regards

ya 'me' variable .Thnx i got my program working

**gits** · Sep 14 '07, 06:58 AM

hi ...

glad to hear you got it working ... post back to the forum anytime you have more questions :)

kind regards

How to call javascript object method from within object

How to call javascript object method from within object

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