How to define an array with a single element in it?

Question

I am trying to define an array with single element... so,

var arr:Array = new Array(1,2,3,4) // arr[0] = 1 
 // but
var arr:Array = new Array(1) // arr[0] = undefined 

//Also, 

var arr:Array = new Array([1]) // arr[0] = 1 , << ILLUSION
//Because, arr[0] is NOT A NUMBER, IT ITSELF IS OF TYPE=> ARRAY. 

var arr:Array = [1] //arr[0]=1 but i think it's AS1.0 notation..

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So, is their any AS3.0 way of defining array with single element ?

Answer 1

var arr:Array = [1]; //arr[0]=1 but i think it's AS1.0 notation..

Why? This is perfectly legal shorthand array initialization, and it's exactly the way to do it.

Answer 2

Lol, I remember dealing with this a year or 2 back, the way I did it was with 2 lines.

var arr:Array = new Array();
arr[0] = "the element";

This is because the constructor for Array accepts the size of the array as an argument if you are passing a single integer value. http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/Array.html#Array()