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VS Code tips

These tips are for Nim development. I suppose that you installed the official Nim extension (as shown here).

F2 - rename

Move the cursor on a variable name or proc name and press F2 to rename it.

Blue underline

The blue underline indicates that the proc (parseInt) may raise an exception (here: a ValueError) that you didn't handle. If you put it inside a try: block, the underline disappears.

Autoformat your code

See here.