// Example of 'let' and 'var' scope
        function testScope() {
            if (true) {
                var varVariable = "I am a var variable";
                let letVariable = "I am a let variable";
            }
            console.log(varVariable); // Outputs: I am a var variable
            console.log(letVariable); // ReferenceError: letVariable is not defined
        }
        testScope();