Test

Scope

Code Ramp 5 preguntas

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Preguntas del test (5)

1Variables that are created within the body of a function are available only in the context of that function. This is referred to as [blank_start]local[blank_end] scope.
1. Alocal
2. Bglobal
2In the following block of code, what is part of the scope that is local to the function?

var tax = 0.08;
function calculateTotal(subtotal) {
var total = subtotal + (subtotal * tax);
return total;
}

console.log(calculateTotal(50));
1. Atax
2. Bsubtotal
3. Ctotal
4. DcalculateTotal
3In the following block of code, what is part of the global scope?

var tax = 0.08;
function calculateTotal(subtotal) {
var total = subtotal + (subtotal * tax);
return total;
}

console.log(calculateTotal(50));
1. Atax
2. Bsubtotal
3. Ctotal
4. DcalculateTotal
4Shadowing is when we accidentally override (or shadow) the value of a variable inside a function.
1. AVerdadero
2. BFalso
5What kind of error is thrown when we try to access a local variable in the global scope? (Hint: If you're not sure, go try it out in your JavaScript console first!)
1. AReference Error
2. BSyntax Error
3. CType Error