'test' - no match 'test test' - no match ' test' - match (space at the start) 'test ' - match (space at the end) 'test test' - match (single space in the middle)

check emailnot match double simbol login..name@domain.com

CheckEmail Login start or end simbols [._- ] .login@domain.com - fail -login@domain.com - fail _login@domain.com - fail login.@domain.com - fail...

([!-\~]aeiou)

/\b(+)\b/ig

it accept -, / and . operator date formate 29-Dec-2015

([!-\~]aeiou)

Are you pissed off with your regular expression homework? well then. here is the answer. ^([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))$

In this case it is only =, but you can easily modify it to add more operators.

format (xxx) xxx-xxxx reg- /^\(\d{3}\) \d{3}-\d{4}$/

Matches anything wrapped in parenthesis. Can handle nested and consecutive sets of parenthesis.

http://stackoverflow.com/questions/34474298/regex-match-pattern-with-prefixed-string/34474387#34474325

Parse simpe roll statement like 3d8+2 or 1d100-7