JavaScript regex for email fails. Why?
2101
How to validate an email address in JavaScript
118768
Php regex date validation
25349
Does PHP's filter_var FILTER_VALIDATE_EMAIL actually work?
155872
Javascript Regex prototype
154437
Regex: match first slash in url -- thats it!! ? not working for some reason?
426
Regular expression for address field validation
37
Regular Expression for alphanumeric and underscores
148063
Python regex - why does end of string ($ and \Z) not work with group expressions?
73377
why is regex constructor not working?
104414
JavaScript regular expressions and sub-matches
2559
Is there a regular expression to detect a valid regular expression?
63928
regex error - nothing to repeat
85864
What is wrong with my date regex?
427
Why does a RegExp with global flag give wrong results?
136156
Regular expression works on regex101.com, but not on prod
42740
new Regexp doesn't work
73052
JsHint warning: A regular expression literal can be confused with '/='