Which of the following is a valid numeric literal in JavaScript?
A). 1234
B). 0b1010
C). 0xGHI
D). 0o89
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 of the following is a correct way to define a decimal literal?
A). 42
B). 42
C). 0x42
D). 0b42
Which regular expression literal matches a string containing 'abc'?
A). /abc/
B). /a.b.c/
C). /ab*c/
D). /abc/i
What is the correct way to declare a string literal?
A). 'Hello'
B). Hello
C). Hello
D). All of the above
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()
Which syntax is used to create a BigInt literal?
A). BigInt(12345)
B). 12345n
C). bigint 12345
D). 12345N
Which literal can contain mixed data types?
A). Object
B). Array
C). String
D). Number
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'; } }