Unfortunately this won't work. The until loop will continue redoing the
block until the condition is met. Unless will only execute the block one
time, leaving the counter at 1901 instead of 2000.
Update: crazyinsomniac has pointed out a better way to say
this: The unless(condition) statement is saying the same thing as to if( not condition).
The until(condition) statement is equivelant to
while( not condition).
That is to say, until() and while() are loops, and will repeat until the
condition is met, while if() and unless() are not, and will only execute the
block 0 or 1 times. Therefore, you can't trade unless() for until().
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||