Using Regular Expressions With Your App

What are Regular Expressions?

Regular Expressions, also called Regex, are strings of characters that allow you to define specific search patterns.

Using Regular Expressions with Your App

Regular expressions can be used within validation rules and text formulas to perform many functions. For more information on using Regex within your Knack app, take a look at the following articles:

• ​Regular Expressions (Regex) and Validation Rules​
• Text Formula Functions

You can read more on regular expression FAQ with Knack here.