Which literal can contain mixed data types?

Which of the following is a correct way to define a decimal literal?

A). 42

B). 42

C). 0x42

D). 0b42

What will be the output of the following code?

let greeting = Hello, ${'World'}!;

A). Hello, World!

B). Hello, ${'World'}!

C). Hello, ${World}!

D). Hello, 'World'!

Which of the following correctly defines a method in an object literal?

A). { name: 'Alice', greet: () => 'Hello' }

B). { name: 'Alice', greet() { return 'Hello'; } }

C). { name: 'Alice', greet: function() { return 'Hello'; } }

D). All of the above

Which of these is a correct array literal?

A). {}

B). []

C). [[]]

D). Array()

Which of the following is a valid hexadecimal literal?

A). 0xG1

B). 0x1G

C). 0x1A

D). 0x1Z

How would you define an empty object literal?

A). []

B). {}

C). empty

D). Object()

Which syntax is used to create a BigInt literal?

A). BigInt(12345)

B). 12345n

C). bigint 12345

D). 12345N

Which symbol represents a null literal?

A). undefined

B). null

C). NULL

D). none

Which of the following correctly defines a function literal?

A). function add(a, b) { return a + b; }

B). function = add(a, b) { return a + b; }

C). function: add(a, b) { return a + b; }

D). function add() = { a + b }

Which of the following is a valid numeric literal in JavaScript?

A). 1234

B). 0b1010

C). 0xGHI

D). 0o89