Answer & Solution
Answer: Option B
Solution:
Objects in JavaScript are indeed collections of key-value pairs, where each key is a unique identifier and each value can be of any data type.
Q
Which of the following statements accurately describes an object in JavaScript?
Related Questions on Average
Which of the following represents a complex data type in JavaScript?
A). Boolean
B). Undefined
C). Null
D). Array
What does the push() method do when used with an array in JavaScript?
A). Removes the last element from the array.
B). Adds elements to the end of the array.
C). Adds elements to the beginning of the array.
D). Sorts the elements in the array.
What is the result of typeof [] in JavaScript?
A). object
B). array
C). list
D). string
What is the purpose of using arrays in JavaScript?
A). To store a single value
B). To store a collection of values
C). To define object properties
D). To create conditional statements
What is the purpose of parameters in a function?
A). To store values
B). To specify the function name
C). To receive inputs and data
D). To create loops
What is a function in JavaScript?
A). A variable
B). A loop
C). A block of code that performs a specific task
D). An object
What is the purpose of using the length property with arrays in JavaScript?
A). To access the last element of the array.
B). To add elements to the array.
C). To determine the number of elements in the array.
D). To access the first element of the array.
How can you remove the last element from an array in JavaScript?
A). Using the pop() method.
B). Using the shift() method.
C). Using the unshift() method.
D). Using the removeLast() method.
Which data type represents a collection of values in JavaScript?
A). Object
B). Array
C). String
D). Number
How do you define a function in JavaScript using a function declaration?
A). function myFunction() { /* code */ }
B). myFunction = function() { /* code */ }
C). myFunction() { /* code */ }
D). myFunction: function() { /* code */ }