Concatenate String

To concatenate string with something else, use the period (.) symbol. Example:

" string with string

echo "Hello" . " " . "World"    " => "Hello World"

" string with variables

echo "Hello" . name               => "Hello Smith"

" string with argument variables

echo "Hello" . a:name             => "Hello Sarah"

Any types will of variables will be automatically converted back to string.

That's all about string concatenation in vimrc.