How would you define an empty object literal?

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

A). 1234

B). 0b1010

C). 0xGHI

D). 0o89

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

A). /abc/

B). /a.b.c/

C). /ab*c/

D). /abc/i

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 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 hexadecimal literal?

A). 0xG1

B). 0x1G

C). 0x1A

D). 0x1Z

Which statement is true about the null literal?

A). null is an object

B). null is a keyword

C). null is a primitive value

D). null is a data type

Which literal correctly defines an object with a method?

A). { name: 'Alice' }

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

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

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

Which of these is a correct array literal?

A). {}

B). []

C). [[]]

D). Array()

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

let x = 0o10;

A). 8

B). 10

C). 16

D). 0

How do you declare a Symbol literal?

A). Symbol()

B). symbol('id')

C). Symbol('id')

D). symbol()