Q
Can a variable declared with let be hoisted?

Answer & Solution

Answer: Option A
Solution:
Variables declared with let are hoisted but not initialized, which means accessing them before declaration results in a ReferenceError.
Related Questions on Average

What will be the output of the following code: let x = 10; { let x = 20; } console.log(x);?

A). 10

B). 20

C). undefined

D). ReferenceError

What is the primary difference between var and let?

A). Scope

B). Initialization

C). Data type

D). Assignment

What will the following code output: { const a = 10; a = 20; }?

A). 10

B). 20

C). undefined

D). TypeError

What is the temporal dead zone in ES6?

A). Time between function calls

B). Period between variable declaration and initialization

C). Time between two loops

D). Interval between event listeners

Are variables declared with let and const accessible before they are declared?

A). Yes

B). No

C). Only in strict mode

D). Only if they are numbers

Which keyword is used to declare a read-only named constant?

A). let

B). var

C). const

D). static

What is the value of a const variable once it is assigned?

A). Can be changed later

B). Cannot be changed later

C). Depends on the data type

D). Undefined initially

What error will the following code produce: const PI; PI = 3.14;?

A). SyntaxError

B). TypeError

C). ReferenceError

D). No error

Which keyword allows block-level scope in ES6?

A). var

B). let

C). function

D). var and function

What is the scope of a variable declared with let?

A). Global

B). Function

C). Block

D). Object