Regular Expressions 101

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/
id="(.*?)"
/
id="
matches the characters id=" literally (case sensitive)
1st Capturing Group
(.*?)
.
matches any character (except for line terminators)
*? matches the previous token between zero and unlimited times, as few times as possible, expanding as needed (lazy)
" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

/
/

Test String