odd or even

[Calvin]

Hallo

I have a array arrDataFile where I have to do some thing at every other number in the array.

loop & arrDataFile.MaxIndex()
{
if A_Index = 1 {}
elseif A_Index / 2 = Round(A_Index / 2)
{ do things
}
}

The line elseif A_Index / 2 = Round(A_Index / 2)
is wrong but what ?

[gregster]

Try

Code: Select all

arr := ["hello", "world", "test", "Autohotkey" ]

loop % arr.Count()		; Count() needs AHK v1.1.29+
{ 
	if (mod(A_index, 2) != 0)
		msgbox % "odd " A_index " : " arr[A_index]
	else
		msgbox % "even " A_index " : " arr[A_index]
}

btw, else if are two words in AHK, not elseif.

[sinkfaze]

Code: Select all

For i, data in arrDataFile
{
	if	!Mod(i,2)
	{
		; do things
	}
}

[digidings]

Code: Select all

arr := ["hello", "world", "test", "Autohotkey" ]

loop % arr.Count()
{
	if (A_index & 1) ; Check LSB: if set it's odd
		msgbox % "odd " A_index " : " arr[A_index]
	else
		msgbox % "even " A_index " : " arr[A_index]
}