Which of these is a valid Boolean literal?

How would you define an empty object literal?

A). []

B). {}

C). empty

D). Object()

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

A). /abc/

B). /a.b.c/

C). /ab*c/

D). /abc/i

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'; } }

How do you declare a Symbol literal?

A). Symbol()

B). symbol('id')

C). Symbol('id')

D). symbol()

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

A). 42

B). 42

C). 0x42

D). 0b42

Which literal can contain mixed data types?

A). Object

B). Array

C). String

D). Number

Which symbol represents a null literal?

A). undefined

B). null

C). NULL

D). none

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

A). 1234

B). 0b1010

C). 0xGHI

D). 0o89

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 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