[REBOL] Re: Apparent newbie question
From: didec:tiscali at: 20-Nov-2003 19:08
Re: Apparent newbie question
> This must be something dumb, but I want to test the length of a block
> and can't seem to do it, yet I can print the length of the block. What
> am I missing?
Not dumb, but frequent error
> Thank you.
> *_*_*_*_* Sample script *_*_*_*_*
> REBOL [ ]
> TEST-BLOCK: [ XXXXXXXX YYYYYYYYY 100 200 ]
> print ["Length of TEST-BLOCK is " length? TEST-BLOCK]
> if length? TEST-BLOCK < 4 [
> print "block too short"
for the interpreter your code is execute like if it was like this :
if length? (TEST-BLOCK < 4) [ ... ]
So you can write :
if (length? TEST-BLOCK) < 4 [ ... ]
if 4 > length? TEST-BLOCK [ ... ]