implicitVars [Was: Re: Best Practices in Rev development]

[-= JB =-]

On Jun 30, 2007, at 5:41 AM, David Bovill wrote:

> Firstly there was a typo in the example - but it also seems I was  
> wrong. Its
> an old habit that perhaps was justified a long time ago?
>
> function countLines someLines
>     repeat for each line someLine in someLines
>       add 1 to lineCount
>     end repeat
>     return lineCount
> end countLines
>
> I do remember having errors in handlers where an a variable that  
> was first
> declared/initiated inside a repeat loop (in this case "lineCount")  
> would
> return the literal text "lineCount' and not empty if the repeat  
> loop was
> never entered into (ie someLines) was empty - maybe it was just in  
> a version
> of the debugger - no idea.
>
> Well one bad old habit fixed :)

Maybe you are thinking of a problem I have had which
was dealt with by declaring the variable just before I
do the repeat line.  When I am going to add to a variable
I always make sure it has something to add to first.

put 0 into lineCount

> function countLines someLines
>     repeat for each line someLine in someLines
>       add 1 to lineCount
>     end repeat
>     return lineCount
> end countLines

-=>JB<=-


>