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

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

let x = 0o10;

A). 8

B). 10

C). 16

D). 0

How would you define an empty object literal?

A). []

B). {}

C). empty

D). Object()

Which symbol represents a null literal?

A). undefined

B). null

C). NULL

D). none

Which of these is a correct array literal?

A). {}

B). []

C). [[]]

D). Array()

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 the following is a valid numeric literal in JavaScript?

A). 1234

B). 0b1010

C). 0xGHI

D). 0o89

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

A). 42

B). 42

C). 0x42

D). 0b42

Which of the following is a valid hexadecimal literal?

A). 0xG1

B). 0x1G

C). 0x1A

D). 0x1Z

What is the correct way to declare a string literal?

A). 'Hello'

B). Hello

C). Hello

D). All of the above