What happens if you try to reassign a value to a constant declared using const?

Which statement about JavaScript's const is true?

A). const variables can be redeclared

B). const variables are globally scoped

C). const variables are mutable

D). const variables cannot be reassigned

Which of the following statements about const is true?

A). Variables declared with const can be reassigned

B). const variables have function scope

C). const variables cannot be used in loops

D). const variables are block-scoped

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

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

A). var

B). let

C). const

D). block

What does the const keyword signify in JavaScript?

A). Constant variable

B). Mutable variable

C). Global variable

D). Block-scoped variable

What will be the output of the code above?

A). 30

B). 31

C). Error

D). Undefined

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

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 benefit of using const over var in JavaScript?

A). const variables have function scope

B). const variables are hoisted to the top

C). const variables prevent accidental reassignments

D). const variables can be used anywhere