Identifier

Identifier is the name of a variable (let) or a function (fn). It must start with a letter or an underscore, followed by any number of letters, digits, or underscores.

Valid example

var1
_var1
_var_1
_Var1

Invalid example

1var
var 1
var-1

Keywords

You must avoid using Navi Stream's keywords, otherwise it will cause a syntax error.

Here is keyword list (not including all), please follow the compiler's check result.

let
var
varip
nil
true
false
for
to
step
while
continue
break
if
else
fn
return
param
meta
export
import
use
switch
case
default
plot