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title: Invert Regular Expression Matches with JavaScript
---
Use`/\S/gi`; to match everything that isn't a space in the string.

Use`/\W/gi`; to match everything that isn't a-z, A-Z, 0-9, or the _ (underscore) in the string.

You can invert any match by using the uppercase version of the selector `\s` versus `\S` for example.