let greeting = Hello, ${'World'}!;
Which literal can contain mixed data types?
A). Object
B). Array
C). String
D). Number
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 of the following is a correct way to define a decimal literal?
A). 42
B). 42
C). 0x42
D). 0b42
What is the value of x after the following code executes?
let x = 0o10;
A). 8
B). 10
C). 16
D). 0
Which regular expression literal matches a string containing 'abc'?
A). /abc/
B). /a.b.c/
C). /ab*c/
D). /abc/i
Which syntax is used to create a BigInt literal?
A). BigInt(12345)
B). 12345n
C). bigint 12345
D). 12345N
Which of the following is a valid numeric literal in JavaScript?
A). 1234
B). 0b1010
C). 0xGHI
D). 0o89
Which of these is a correct array literal?
A). {}
B). []
C). [[]]
D). Array()
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