Answer & Solution
Answer: Option B
Solution:
The Temporal Dead Zone (TDZ) is a phase where variables declared with let or const are in memory but not accessible until their declaration.
Q
What does the Temporal Dead Zone (TDZ) refer to?
Related Questions on Average
What is the output of console.log(i); outside the loop if let i = 10; is declared inside a loop?
A). 10
B). undefined
C). Error
D). 0
Which keyword introduces block-scoped variables in JavaScript?
A). var
B). let
C). const
D). function
What is the output of console.log(outerVar); outside outerFunction if let outerVar = 'Outer'; is declared inside outerFunction?
A). Outer
B). undefined
C). Error
D). null
How does block scope help prevent variable hoisting issues?
A). By moving variables to the top of the code
B). By restricting variables to their block
C). By making variables accessible globally
D). By assigning default values to variables
How can you access a variable declared in an inner block from an outer block?
A). Using the var keyword
B). Using the let keyword
C). Using the const keyword
D). Using the this keyword
What is the output of console.log(innerVar); outside exampleFunction if let innerVar = 'Hello'; is declared inside exampleFunction?
A). Hello
B). undefined
C). Error
D). null
What is block scope in JavaScript?
A). Variables scoped globally
B). Variables scoped within a function
C). Variables scoped to a block
D). Variables scoped to an object
What is the benefit of block scope in JavaScript?
A). It reduces variable conflicts
B). It increases global scope
C). It simplifies variable declarations
D). It makes variables inaccessible
What is lexical scoping in JavaScript?
A). Variables scoped to the entire codebase
B). Variables scoped to their functions
C). Variables scoped based on their position in the code
D). Variables scoped based on their names
How can you ensure variable immutability within a block?
A). Declare the variable with var
B). Declare the variable with let
C). Declare the variable with const
D). Assign a default value