This tool is useful when you are creating Regular Expression. This tool will help you in checking syntax of the regular expression typed in. Also you can check whether particular value matches with the regular expression exactly once or multiple matches are available depending on the option you choose.
Where do we need this?
- When you are writing regular expressions for the Regular Expression Validator control of the ASP.net
- When you are searching for a particular pattern of text from a large volume of text
You might come across with other uses.