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Variables
Namespaces
See help for internal-variables for more details.
| Syntax | Description |
|---|---|
myvar | Local to a function, may conflict with other scopes. |
a:myarg | Argument. |
b:myvar | Local to buffer. |
w:myvar | Local to window. |
s:myvar | Local to script. |
l:myvar | Local to function. |
g:myvar | Global. |
&shiftwidth | Global setting. |
$HOME | Environment variable. |
Set variable value
Differently of other programming languages, on every value change let keyword is needed.
vim
let myvar = 'Hello'Variable existence
Checks if the variable / function is defined. Check the help for exists for more details.
vim
echo exists('&setting')
echo exists('*function')
echo exists('varname')