![Regular Expressions using RegexOptions.IgnoreCase slower than inline case insensitive pattern syntax in .NET 6 Regular Expressions using RegexOptions.IgnoreCase slower than inline case insensitive pattern syntax in .NET 6](https://davecallan.com/wp-content/uploads/2022/07/net7-regex-difference-case-insensitive.png)
Regular Expressions using RegexOptions.IgnoreCase slower than inline case insensitive pattern syntax in .NET 6
![Using "case-insensitive" notation in a Regular Expression answer is apparently "not valid" - Google Docs Editors Community Using "case-insensitive" notation in a Regular Expression answer is apparently "not valid" - Google Docs Editors Community](https://storage.googleapis.com/support-forums-api/attachment/thread-46001787-14082787127881017743.png)
Using "case-insensitive" notation in a Regular Expression answer is apparently "not valid" - Google Docs Editors Community
![case insensitive regex in deployment condition - Operations Bridge User Discussions - Operations Bridge case insensitive regex in deployment condition - Operations Bridge User Discussions - Operations Bridge](https://community.microfocus.com/cfs-file/__key/communityserver-discussions-components-files/220/7077.large.png)
case insensitive regex in deployment condition - Operations Bridge User Discussions - Operations Bridge
![ArangoDB does not match documents with case-insensitivity when using regex operator =~ - Stack Overflow ArangoDB does not match documents with case-insensitivity when using regex operator =~ - Stack Overflow](https://i.stack.imgur.com/lCt6r.png)