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
How do you declare a Symbol literal?
A). Symbol()
B). symbol('id')
C). Symbol('id')
D). symbol()
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 }
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'!
How would you define an empty object literal?
A). []
B). {}
C). empty
D). Object()
Which of these is a valid Boolean literal?
A). 1
B). 0
C). 1
D). 0
Which regular expression literal matches a string containing 'abc'?
A). /abc/
B). /a.b.c/
C). /ab*c/
D). /abc/i
Which literal can contain mixed data types?
A). Object
B). Array
C). String
D). Number
Which syntax is used to create a BigInt literal?
A). BigInt(12345)
B). 12345n
C). bigint 12345
D). 12345N