Scope #

Same concept in JS block scope.

Syntax

(begin <expr|sequence>)

Access Variable from Global Scope #

Every built-in function and variable is scoped globally.

Example #

(print __VERSION__) /* global variable */

Global vs. Local Scope #

Defining variable and function without begin block scope. All of them will be registered to the Global Execution Context Same in JS.

// global

(var x 10)
(begin
    // local outer scope
    (var y 20)
    (print x)

    (begin
        // local inner scope
        (print x)
        (print y)
    )
)