Is array empty?

[Phaser]

Hi everyone

Simple question (I hope) I have a fixed size [5] 1d array and am pushing and removing values to/from it, when there is a value in it I perform another function with that value but if its empty I don't, simple as that.

How do I check it has something in it?

[JohnOne]

I would do something like this

Local $array[5] = ["T",0,0,1,""]

For $i = 0 To 4 
    If $array[$i] Then
        Msgbox(0,"Array", "Element " & $i & " Is used")
    EndIf
Next

Edited March 31, 2010 by JohnOne

[KaFu]

Dim $array[5] = [0,0,1,0,1]
$iArrayEmpty = ""
for $i = 0 to UBound($array) -1
    if $array[$i] then $iArrayEmpty &= $i & ","
next
if not $iArrayEmpty Then
    MsgBox(0,"","Array is empty")
Else
    $iArrayEmpty = Stringleft($iArrayEmpty,StringLen($iArrayEmpty)-1)
    MsgBox(0,"","Array contains values at position " & $iArrayEmpty)
endif

Dim $array[5] = [0,0,0,0,0]
$iArrayEmpty = ""
for $i = 0 to UBound($array) -1
    if $array[$i] then $iArrayEmpty &= $i & ","
next
if not $iArrayEmpty Then
    MsgBox(0,"","Array is empty")
Else
    $iArrayEmpty = Stringleft($iArrayEmpty,StringLen($iArrayEmpty)-1)
    MsgBox(0,"","Array contains values at position " & $iArrayEmpty)
endif

[Phaser]

Hi JohnOne

The only problem is, when the array is empty there are no 0's will this still work?

[JohnOne]

Yes. 0 is considered False I believe and an empty string also, anything else is considered true.