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New Message on BDOTNET
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From: rags_rao
Message 2 in Discussion
A difficult one!(but only becoz i had forgotten my FAFL lessons) but i wasnt gonna
give up. was i?
/^(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[\W_]).*$/
thats ur reg exp. the key is to use noncapturing lookahead (?=) otherwise its
straightfwd. it has 4 parts:
1. (?=.*[0-9]) or [\d] look for digit
and
2. (?=.*[A-Z]) look for CAPS
and
3. (?=.*[a-z]) look for no CAPS
and
4. (?=.*[\W_]) look for non-Alphanum
\W includes everything except underscore (_) so an _ has 2 b added
........ya and the final .* is reqd without it u r not really macthing anything coz
all the other parts dont capture anything here's javascript:. var str =new
Array("1234a","12Abdf)"/*valid*/,"1aA","asdF%^&","ascBGT","34^&*as","__ASDfg","234_*&^%sfDGH"/*valid*/);
for(var i=0;i<str.length;i++)
{
var _match = str[i].match(/^(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[\W_]).*$/);
// or /^(?=.*[0-9])(?=.*[a-z])(?=.*[/d])(?=.*[\W_]).*$/
if(_match) alert(_match);
} looking fwd to more reg exps........ --
"The moths & atheists are doubly divine & dying"
- Jim morrison
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