Regular Expressions 101

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/
^http(s)?:\/\/www.example\.com
/
g
^ asserts position at start of the string
http matches the characters http literally (case sensitive)
1st Capturing Group
(s)?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
s matches the character s literally (case sensitive)
: matches the character : literally (case sensitive)
\/ matches the character / literally (case sensitive)
\/ matches the character / literally (case sensitive)
www matches the characters www literally (case sensitive)
. matches any character (except for line terminators)
example matches the characters example literally (case sensitive)
\. matches the character . literally (case sensitive)
com matches the characters com literally (case sensitive)
Global pattern flags
g modifier: global. All matches (don't return after first match)
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

/
/
g

Test String

Regex Debugger

Please wait while your expression is being debugged...