Answer & Solution
Answer: Option B
Solution:
An object in JavaScript is a collection of key-value pairs where keys are unique identifiers and values can be of any data type.
Q
What is an object in JavaScript?
Related Questions on Average
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 */ }
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 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 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
How do you call a function in JavaScript?
A). Using the execute() method
B). Using the call() method
C). Using the run() method
D). By using the function name followed by parentheses
Which of the following represents a complex data type in JavaScript?
A). Boolean
B). Undefined
C). Null
D). Array
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 a complex data type in JavaScript?
A). Number
B). Object
C). String
D). Boolean