Q
Which statement about JavaScript's const is true?

Answer & Solution

Answer: Option D
Solution:
The true statement about const in JavaScript is that const variables cannot be reassigned after they are initialized with a value. They are constant in terms of their reference or value.
Related Questions on Average

Which of the following is NOT an example of a block in JavaScript?

A). Function body

B). if statement body

C). while loop body

D). Object literal

What is the primary distinction between const and let in JavaScript?

A). const variables are immutable

B). let variables are block-scoped

C). const variables have function scope

D). let variables can be reassigned

Which of the following statements is true about block scope in JavaScript?

A). Variables declared with let have global scope

B). Variables declared with let have function scope

C). Variables declared with let are block-scoped

D). Variables declared with let are hoisted

What will be the output of the code above?

A). 30

B). 31

C). TypeError

D). Undefined

What does the const keyword signify in JavaScript?

A). Constant variable

B). Mutable variable

C). Global variable

D). Block-scoped variable

Which of the following statements is true about constants declared using const?

A). They can be reassigned multiple times

B). They are hoisted to the top

C). They are mutable

D). They are immutable

What will happen when you try to execute this code?

A). 14 will be logged to the console

B). 14159 will be logged to the console

C). SyntaxError will occur

D). TypeError will occur

What will be the output of the code above?

A). 10

B). 20

C). Error

D). Undefined

What will be the output of the code above?

A). 30

B). 31

C). Error

D). Undefined

Which keyword is used to declare block-scoped variables in JavaScript?

A). var

B). let

C). const

D). block