What is non-capturing groups in Perl?

In Perl, non-capturing groups are used in regular expressions to group elements without creating a separate capture group for them. This is useful when you want to apply quantifiers or other operators to a group of expressions but do not need to capture the matched content for later reference.

Non-capturing groups are denoted by the syntax:

Here’s an example to illustrate non-capturing groups:

This pattern will match one or more occurrences of either "abc" or "def" without capturing them as separate groups.