13

Question 1

const x;

Answer 1

> error !
(variables declared with const need an initial value)

Question 2

When to use let, const and var?

Answer 2

• use const by default
• use let when you’re really sure that the variable needs to change in the future
• avoid var!

Question 3

job = ‘programmer’

Answer 3

you should always declare variables with let or const