TheCloud/learn-regex
1
0
Fork 0
mirror of https://github.com/ziishaned/learn-regex.git synced 2025-12-04 00:31:44 -05:00
Code Issues Packages Projects Releases Wiki Activity

Merge c07416a8cde1f9b7718d2e2fa392d122bbce9382 into 5a5252eb51fd9c49f194f73b4f85f649da96b463

Browse Source
This commit is contained in:
Giridaramoorthy 2025-08-28 14:52:07 -04:00 committed by GitHub
commit e9cb06ddc4
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
README.md
View File

@ -591,6 +591,21 @@ possible. We can use `?` to match in a lazy way, which means the match should be
[Test the regular expression](https://regex101.com/r/AyAdgJ/2)
## 7. Backreferences
A backreference in a regular expression identifies a previously matched group and looks for exactly the same text again. A simple example of the use of backreferences is when you wish to look for adjacent, repeated words in some text.
<pre>
"/([a-z])\1/g" => Ha<a href="#learn-regex"><strong>pp</strong></a>ine<a href="#learn-regex"><strong>ss</strong></a>. </pre>
[Test the regular expression](https://regex101.com/r/5Nclso/1)
<pre>
"/(\")(.*?)\1/" => He said "<a href="#learn-regex"><strong>She's beautiful</strong></a>" </pre>
[Test the regular expression](https://regex101.com/r/ykVPb4/1)
## Contribution