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

Answer & Solution

Answer: Option D
Solution:
You can access the value of a key in a JavaScript object using dot notation (object.key) or bracket notation (object[key]).
Related Questions on Average

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

A). push()

B). append()

C). insert()

D). add()

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

A). String

B). Integer

C). Array

D). Boolean

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)

What is the purpose of a JSON object?

A). To store a single value

B). To define a variable

C). To represent data as a string

D). To store data in a structured, key-value pair format

What is a key characteristic of a hash table?

A). Ordered elements

B). Key-value pairs

C). Fixed size

D). Single value elements

Which method removes the last element from an array in JavaScript?

A). remove()

B). pop()

C). delete()

D). slice()

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)

What is a queue data structure used for?

A). First In, First Out (FIFO)

B). Last In, First Out (LIFO)

C). Last In, Last Out (LILO)

D). First In, Last Out (FILO)

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 parse a JSON string in JavaScript?

A). JSON.convert()

B). JSON.toObject()

C). JSON.parse()

D). JSON.stringify()