How do you assign a variable in Vim?

How do you assign a variable in Vim?

Try running the following commands: :function Assign(foo) : let a:foo = “Nope” : echom a:foo :endfunction :call Assign(“test”) Vim will throw an error, because you can’t reassign argument variables. Now run these commands:

How to use function arguments in vimscript the Hard Way?

Run the function: :call DisplayName(“Your Name”) Vim will display two lines: Hello! My name is:and Your Name. Notice the a:in the name of the variable that we passed to the echomcommand. This represents a variable scope, which we talked about in an earlier chapter.

What do the two lines in Hello Vim mean?

Vim will display two lines: Hello! My name is:and Your Name. Notice the a:in the name of the variable that we passed to the echomcommand. This represents a variable scope, which we talked about in an earlier chapter. Let’s remove this scope prefix and see how Vim reacts.

How to call a function directly in vimscript?

Calling Functions We can already see that there are two different ways of calling functions in Vimscript. When you want to call a function directly you use the callcommand. Run the following commands: :call Meow() :call GetMeow() The first will display Meow!but the second doesn’t display anything.

How to define a function in Vim for real?

Okay, let’s define a function for real this time. Run the following commands: :function Meow() : echom “Meow!” :endfunction This time Vim will happily define the function. Let’s try running it: :call Meow() Vim will display Meow!as expected. Let’s try returning a value. Run the following commands: :function GetMeow() : return “Meow String!”

How to run a meow function in Vim?

Run the following commands: :function Meow() : echom “Meow!” :endfunction This time Vim will happily define the function. Let’s try running it: :call Meow() Vim will display Meow!as expected. Let’s try returning a value. Run the following commands: :function GetMeow() : return “Meow String!” :endfunction Now try it out by running this command:

Which is the second way to call function in Vimscript?

Run the following commands: :call Meow() :call GetMeow() The first will display Meow!but the second doesn’t display anything. The return value is thrown away when you use call, so this is only useful when the function has side effects. The second way to call functions is in expressions.