» Home » Movies » Tutorials » Submissions » Sound FX » Board » Links » Reviews » Feedback » Gallery » Fonts » The Lounge » Sound Loops
Search tutorials
Author: Michael Barry | Website: http://www.iol.ie/~michaelbarry/public_html
Properties can also have methods as values and these methods can be functions.

e.g.
function myCirc(){
this.x=myArea;
}

function myArea(r){
return r*r*3.1415;
}

a=new myCirc();
var output=a.x(12);

output = 452.376

So what is happening here?
1.var output=a.x(12);
// The argument, 12, is associated with a property 'x' in 'a'.
2. 'a' is a variable which references a new instance of 'myCirc'.
3. The property 'x' is not explicitly defined for 'a' in terms of the reference 'a'.
// I could have written: a.x = aValue; but this is not found for x in a.
4. The original function myCirc does contain a property 'x'. ('this.x')
5. This property is a method, myArea and it computes the area of a circle with radius 12.

So here is the path of the argument '12'.
No explicitly defined property 'x' exists for 'a'.
So the original 'myCirc' is checked for the property x.
It has been defined in myCirc: 'this.x', and it is a function - myArea.
So output = myArea: return 12*12*3.1415 = 452.376.

 » Level Intermediate Added: 2001-06-22 Rating: 8 Votes: 30 1 2 3 4 5 6 7 8 9 10 (10 being the highest) » Author No details available. » Download Download the files used in this tutorial. Download (0 kb) » Forums More help? Search our boards for quick answers!

• There are no comments yet. Be the first to comment!

• You must have javascript enabled in order to post comments.

Featured Flash FLA
» Author: Inocreato
» Title: RaiseTheBlocks
» Description: Raise all the blocks to win the game
Featured Sound Loops

Audio Player

» Author: TomCat Carty
» Title: The Wood
» Description: Just a little game ending or it can maybe be looped. Recorders with music box and percussion to give the feel of well, I don't know, the woods? Free to use, just credit me. thank you
Latest Font
» Author: Fábio FAFERS
» Description: I created this font for free use. Everyone can apply it in personal or business texts. Its free, but I want to be communicated in case of business use. Donations are accepted to keep the project of free fonts alive! Thank you all
Featured Sound Fx

Audio Player

» Author: Davisigner
» Description: Hmm... what to say about this one? It's reminiscent of the closing notes of the opening music from the Three Stooges done in a church organ style with a closing cymbal crash. I'll give this one away gratis, but feel free to check out my free loops and potential upcoming license-mandated ones over in the respective part of Flashkit.