describe("About Scope (topics/11_about_scope.js)", () => {

thisIsAGlobalVariable = 77;

expect("global variables", function () {

equal(

__,

thisIsAGlobalVariable,

"is thisIsAGlobalVariable defined in this scope?"

);

});

expect("variables declared inside of a function", function () {

let outerVariable = "outer";

// this is a self-invoking function. Notice that it calls itself at the end ().

(function () {

let innerVariable = "inner";

expect(__).toBe(outerVariable, "is outerVariable defined in this scope?");

expect(__).toBe(innerVariable, "is innerVariable defined in this scope?");

})();

expect(__, outerVariable, "is outerVariable defined in this scope?");

expect(__, typeof innerVariable, "is innerVariable defined in this scope?");

});

});