How do I define a function so that I can call it from command-line mode without :call in front of it?
Right now, I have to do this: :call TrimWhitespace()
I want to define it so that I can do this: :TrimWhitespace
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This won’t be a function, you should create a command instead. Check the documentation for commands (
:help user-commandsin Vim).The simplest case is of a command to call a function: