JS Sensei

Which of the following correctly declares a constant variable in JavaScript?

let x = 5;const x = 5;var x = 5;x = 5;

How do you add an element to the end of an array?

array.push(element)array.add(element)array[array.length] = elementarray.append(element)

Which loop is best for iterating over array elements?

while loopfor...in loopfor loopdo...while loop

Quick diagnostic (3 questions)