regex101 URLs with pre-filled values

It’s possible to link to regex101 with pre-filled regular expression, flags, and test string, as well as pre-selected flavor/engine with these undocumented URL parameters:

https://regex101.com/?regex=...&testString=...&flags=...&flavor=...

Example link

The flavor value can be one of the following:

• pcre2 for PCRE2 (PHP >=7.3)
• pcre for PCRE (PHP <7.3)
• javascript for ECMAScript (JavaScript)
• python for Python
• golang for Golang
• java for Java 8
• dotnet for .NET 7.0 (C#)
• rust for Rust

While regex101 has a nice feature for saving and sharing, these parameters are convenient for programmatically creating playground links.