What is javascriptcoregtk for?

Hi guys! Can anyone tell me what this java package is for and what is it doing and is it safe to remove it?

javascriptcoregtk4.0-2.38.4-1.fc37.x86_64  javascriptcoregtk4.1-2.38.4-1.fc37.x86_64  
[root@]# dnf remove javascriptcoregtk4.0-2.38.4-1.fc37.x86_64
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javascriptcoregtk4.0 is a JavaScript engine used by WebKitGTK, which is a web rendering engine for GTK applications.

In other words, it’s used by GTK applications that display some kind of web-based content. Many apps nowadays use web technologies to display parts of their UI or content, even if it doesn’t look like a web browser.

You can follow the trail of dependencies on your system, using some dnf commands. Here’s what it looks like on my system:

$ dnf rq --whatdepends javascriptcoregtk4.0 --installed
$ dnf rq --whatdepends webkit2gtk4.0 --installed

This shows that javascriptcoregtk4.0 is used by webkit2gtk4.0, which is in turn used by Atril (PDF/document viewer) and Lutris (game manager). You might have the same or different programs that depend on javascriptcoregtk4.0.

If you try to remove it, dnf will tell you what other packages will be removed. Whether it’s “safe” or not depends on if you want those other packages.

If you’re not sure, you can post the full output of the remove command here.

FYI, JavaScript is not related to Java. Yes, it’s confusing.