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 data type represents a collection of values in JavaScript?
A). Object
B). Array
C). String
D). Number
Which of the following represents a complex data type in JavaScript?
A). Boolean
B). Undefined
C). Null
D). Array
What is an object in JavaScript?
A). A type of function
B). A collection of key-value pairs
C). A type of array
D). A type of boolean
What is the purpose of using functions as values in JavaScript?
A). To define object properties
B). To store strings and numbers
C). To perform a specific task or operation
D). To represent complex data structures
What is the result of typeof [] in JavaScript?
A). object
B). array
C). list
D). string
How do you add an element to the end of an array in JavaScript?
A). Using the push() method
B). Using the add() method
C). Using the append() method
D). Using the end() method
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
How do you access a property of an object in JavaScript?
A). Using dot notation (objectName.propertyName)
B). Using square brackets (objectName['propertyName'])
C). Both A and B
D). Neither A nor B
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.
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