For years I have not noticed a built-in feature of my favorite code editor – Sublime Text. I have recently needed to deduplicate lines in a file and though I will need an additional package. And that’s when I discovered it’s an existing feature in default Sublime Text configuration. So particularly for my future reference, I decided to create this post.

Any modern code editor supports plugins to extend its capabilities. Sometimes they are called “packages” or “extensions” etc. There is a plugin which greatly improved my workflow but I think it’s overlooked by many developers – Insert Nums. Since I started using this package, it became my favorite plugin. There are versions for at least two of the most popular code editors: Sublime Text and Visual Studio Code.