Is there any speed advantage to using a : in your code instead of writing code on the next line?
Quote from: Imperceptus on June 03, 2004, 09:33 AM
Is there any speed advantage to using a : in your code instead of writing code on the next line?
No.
If your referring to things like:If Blah = True Then: Exit SubThen no. I always felt it was good programming style to do:If Blah = True Then
Exit Sub
End If
It's my experience that not only is the code easier to read but also more modular. Very annoying when people write their code without ever knowing the tab button exists.
Why not
If Blah=true then exit sub
It works too?...
You could use it with select case. If your only wanting to call one thing.
Select Case this
Case 1: dosomething
End Select
The compiler will optimize your code when it compiles it either way. Using excessive :'s to break up lines of code will just confuse you -- whitespace is valuable, and in VB, whitespace is cheap -- use it often.
I am not a VB expert but in Java white space is ignored on compile time. It is essentially allowed so you can format your code in whatever silly way you want so, as Stealth said, your code is easier to understand.
Visual Basic seems to force you to format your code following there standard though (I hate having to use the underscore for multiple line operations).
And I like to use : in a few instances.
I use it to assign a value and then exit sub/function on the same line as an if statement. Typically to set an error status, corresponding to a C++ "return X;" which already does both the assignment and the exit.
I use it for patterns, where I find it easier to read the pattern if each instance is a line in a colon-separated table:
Select Case var
Case 1: msg = "Please do": answer = "OK"
Case 2: msg = "Will you?": answer = "Yes|No"
Case 3: msg = "Error!": answer = "Abort|Retry|Ignore"
End Select
Quote from: Tuberload on June 03, 2004, 05:04 PM
Visual Basic seems to force you to format your code following there standard though (I hate having to use the underscore for multiple line operations).
Yes -- between, before and after lines of code whitespace is cheap. The lines themselves must adhere to the IDE's standard. :)
Quote from: CrAz3D on June 03, 2004, 02:20 PM
Why not
If Blah=true then exit sub
It works too?...
And why not
If Blah Then Exit SubBecause it's personal preference!
Quote from: Adron on June 03, 2004, 06:12 PM
I use it for patterns, where I find it easier to read the pattern if each instance is a line in a colon-separated table:
Select Case var
Case 1: msg = "Please do": answer = "OK"
Case 2: msg = "Will you?": answer = "Yes|No"
Case 3: msg = "Error!": answer = "Abort|Retry|Ignore"
End Select
Of course, what Adron really meant was:
Case 3: msg = "Feature!": answer = "Abort|Retry|Ignore"
;)
only good thing about using a : is it doesnt have as many lines in your code for things like file opens its prob easier to do this
open Blah for input as #1: input#1, bleh:close #1:text1.text = bleh
then you dont waste as much space.
so only nice thing about : is not wasting lines as much