What is the value of x after the following code executes?

let x = 0o10;

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 the following is a valid numeric literal in JavaScript?

A). 1234

B). 0b1010

C). 0xGHI

D). 0o89

Which symbol represents a null literal?

A). undefined

B). null

C). NULL

D). none

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 is a valid hexadecimal literal?

A). 0xG1

B). 0x1G

C). 0x1A

D). 0x1Z

Which of these is a correct array literal?

A). {}

B). []

C). [[]]

D). Array()

What is the correct way to declare a string literal?

A). 'Hello'

B). Hello

C). Hello

D). All of the above

Which regular expression literal matches a string containing 'abc'?

A). /abc/

B). /a.b.c/

C). /ab*c/

D). /abc/i

Which of these is a valid Boolean literal?

A). 1

B). 0

C). 1

D). 0

Which literal can contain mixed data types?

A). Object

B). Array

C). String

D). Number