remove item from array

[pinkaboo]

Please, could someone tell me how to remove an item from an array please?

for example:

remove = "";
MyArray = [1, 2, 3, 4, 5, 6];


if "remove"= 4 I want :
MyArray = [1, 2, 3, 5, 6];

(or to create a new array?)

How can I do this?

Thanks in advance,

K

[red penguin]

splice() is what you need, baby...

...It can add or subtract elements from an array. In your example...

MyArray.splice(3, 1);

This will effectively remove the 4th element from the array. Remember that array elements begin with "0"...
yeah?

[pinkaboo]

Thanks very much, I'll go and try that now.

Although I have a query - if the first number removes the corresponding element from an array, what does the second number do?

cheers

K

[tg]

i believe the first number tells flash where to start pulling elements out of the array, the second number tells flash how many elements to pull out of the array.

i'm not sure exactly, so check help in flash

[red penguin]

Right-o! The second argument tells the interpreter how many elements to get rid of! (referred to as the deleteCount)
If you don't give deleteCount, it'll remove the remaining elements...

var foo = new Array("1", "2", "3", "4", "5", "6");
foo.splice(4);
//foo is now 1, 2, 3, 4
foo.splice(1,1);
//foo is now 1, 3, 4
foo.splice(1, 0, "blah")
//used splice to insert "blah" into foo.
//foo is now 1, blah, 3, 4
//Note the use of zero for the deleteCount

Cool, eh?

[pinkaboo]

awesome

thank you very much, both of you

I think I actually understand splice now, well, a bit clearer now anyway! I'd been wading through the tutorials/function library in dispair because although people had been fantastic enough to submit code I didn't have a clue how to interpret it to make it useful. Feel like I'm getting somewhere now.

cheers

K

[Jesse]

Remember that like most of the prototypes which ship with Flash are very innefficient. People have ade their own Splice functions and posted them about the place. Apparently they're 40% faster if you want to look around...

[tg]

prototype is a great place to find some wonderful code/prototypes. the folks there have it set up so users keep the database updated, and can comment on other code available to everyone.

the bad news is they are down right now, but hopefully will be back soon.

here is the dress http://www.layer51.com/proto/

[red penguin]

Thanks for the info tg! Haven't checked it out yet but look forward to it!

[pinkaboo]

TG - fantastic, that link you posted is now working again (hoorah) and I've just checked it out. Looks like a great site, thanks very much for the tip.

cheers

K