When iterating over an array (that I need the index for each item) I typically do this:
// Assume myArray is an array of variable length Var limit As Integer = myArray.LastRowIndex For i As Integer = 0 To limit // Do something Next i
I’ve always cached the upper bounds of the array because I’ve always assumed that Xojo queries the array every iteration of the loop to see if the counter has reached the last row index. Does anyone know if this is actually what happens?
In other words, is this any slower?
// Assume myArray is an array of variable length For i As Integer = 0 To myArray.LastRowIndex // Do something Next i
The second method is prettier to read and uses one less variable.
With the greatest respect to anyone who can help, please don’t say “the speed difference will likely only be tiny and only if blah, blah, blah”. I’m looking for a definitive answer as I’m writing a physics engine and trust me, every microsecond counts.