Which method converts a JavaScript object into a JSON string?

In JavaScript, how do you define an array?

A). let arr = 'value1, value2'

B). let arr = [value1, value2]

C). let arr = {value1, value2}

D). let arr = (value1, value2)

Which of the following is a feature of complex data types?

A). They can hold multiple values

B). They can be manipulated as a single entity

C). They can be composed of different data types

D). All of the above

Which of the following is a common example of a complex data type?

A). String

B). Integer

C). Array

D). Boolean

How do you access the value of a key in a JavaScript object?

A). object(key)

B). object.key

C). object[key]

D). Both b and c

What is the primary use of a stack data structure?

A). First In, First Out (FIFO)

B). First In, Last Out (FILO)

C). Last In, First Out (LIFO)

D). Last In, Last Out (LILO)

How do you create a dictionary in Python?

A). dict = {key1: value1, key2: value2}

B). dict = (key1: value1, key2: value2)

C). dict = [key1: value1, key2: value2]

D). dict =

How do you create a set in Python?

A). set = {1, 2, 3}

B). set = (1, 2, 3)

C). set = [1, 2, 3]

D). set = <1, 2, 3>

What is a key characteristic of a hash table?

A). Ordered elements

B). Key-value pairs

C). Fixed size

D). Single value elements

What does SQL stand for?

A). Structured Query Language

B). System Query Language

C). Structured Question Language

D). System Question Language

Which function is used to add an element to the end of an array in JavaScript?

A). push()

B). append()

C). insert()

D). add()