Hi, I have a question regarding the and/&&/= keywords in Ruby. The ruby docs say that the precedence for the mentioned keywords is: (1)&&, (2)=, (3)and. I have this snippet of code I wrote: def f(n) n end if a = f(2) and b = f(4) then puts "1) #{a} #{b}" end if a = f(2) && b = f(4) then puts "2) #{a} #{b}" end...
Hello. So i have this form.. With 2 fields. "Youtube" and "link" I want to do if you have filled in YouTube, it should do this: if(!empty($youtube)) { if ($pos === false) { echo "Du skal indtaste youtube et URL, som starter med 'http://www.youtube.com/watch?..<br>"; echo "<br> Har du ikke din video på YouTube, skal du ikke udf...
Why I can't redefine the __and__ operator? class Cut(object): def __init__(self, cut): self.cut = cut def __and__(self, other): return Cut("(" + self.cut + ") && (" + other.cut + ")") a = Cut("a>0") b = Cut("b>0") c = a and b print c.cut() I want (a>0) && (b>0), but I got b, that the usual behaviour of ...
Based on this answer http://stackoverflow.com/questions/469913/regular-expressions-is-there-an-and-operator I tried the following on http://regexpal.com/ but was unable to get it to work. What am missing? Does javascript not support it? Regex: (?=foo)(?=baz) String: foo,bar,baz ...