Q
What does hoisting refer to in JavaScript variable declarations?

Answer & Solution

Answer: Option c
Solution:
Hoisting in JavaScript refers to the behavior of moving variable declarations to the top of their scope during compilation. The correct option is c. Moving variable declarations to the top.
Related Questions on Average

What is the outcome of console.log(typeof x); if x is declared but not initialized in JavaScript?

A). a. Undefined

B). b. Null

C). c. Error

D). d. Object

What will console.log(a); output if a is declared outside a function but inside a block using let in JavaScript?

A). a. It will output the value of a

B). b. It will throw an error

C). c. It will output undefined

D). d. It

What keyword is used to declare variables in JavaScript?

A). a. var

B). b. const

C). c. let

D). d. def

What is the difference between var and let in terms of scope in JavaScript?

A). a. Both have function scope

B). b. Both have block scope

C). c. var has block scope, let has function scope

D). d. var has function scope, let has block scope

What is the difference between var and let in terms of scope in JavaScript?

A). a. Both have function scope

B). b. Both have block scope

C). c. var has block scope, let has function scope

D). d. var has function scope, let has block scope

What keyword is used to declare variables in JavaScript?

A). a. var

B). b. const

C). c. let

D). d. def

What will happen if you try to reassign a value to a constant declared with const in JavaScript?

A). a. It will throw an error

B). b. It will silently ignore the assignment

C). c. It will convert the variable to let

D). d. It will convert the variable to var

Which keyword is used to declare a variable that cannot be reassigned in JavaScript?

A). a. var

B). b. let

C). c. const

D). d. mutable

Which keyword is used to declare a variable that cannot be reassigned in JavaScript?

A). a. var

B). b. let

C). c. const

D). d. mutable

Which of the following variable names is valid in JavaScript?

A). a. my variable

B). b. _variable

C). c. 3variable

D). d. variable$