V/var keyword



The 
V
/
var
statement declares a variable initializing it to a value.
V variable_name = value

You can declare more than one variable at a time with a tuple assignment:
F get_row_column() // this is a function returning a tuple
   ...
   R (row, col)
...
V (row, col) = get_row_column() // analogous code: `V rc = get_row_column(); V row = rc[0]; V col = rc[1]`

Partial declaration is also possible:
(V row2, col) = get_row_column() // `col` has already been declared, `row2` is declared here
or:
(row, V col2) = get_row_column() // `row` has already been declared, `col2` is declared here