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# RegExp

**Regular Expressions are patterns used to match character combinations in strings.**

## RegExp Matching

{% content-ref url="/pages/Q3gyFVNDXjtiG9XvHYDP" %}
[Matching](/advanced/regexp/matching.md)
{% endcontent-ref %}

## RegExp Replacement

{% content-ref url="/pages/ydiEWglXDrnOujpkWPxa" %}
[Replacement](/advanced/regexp/replacement.md)
{% endcontent-ref %}