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
Which keyword allows block-level scope in ES6?
A). var
B). let
C). function
D). var and function
What error will the following code produce: const PI; PI = 3.14;?
A). SyntaxError
B). TypeError
C). ReferenceError
D). No error
What is the scope of a variable declared with let?
A). Global
B). Function
C). Block
D). Object
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
Which keyword should be used for a variable that might be reassigned?
A). const
B). let
C). var
D). function
Can a const variable be declared without an initial value?
A). Yes
B). No
C). Only in strict mode
D). Only if it is an object
Can a variable declared with let be hoisted?
A). Yes, partially
B). No
C). Yes, fully
D). Only in strict mode
What is the output of the following code: let z = 3; z = 5; console.log(z);?
A). 3
B). 5
C). undefined
D). ReferenceError
Can const be used for objects and arrays?
A). No
B). Yes
C). Only for arrays
D). Only for objects