Which method removes the last element from an array in JavaScript?
A). remove()
B). pop()
C). delete()
D). slice()
What is an object in programming?
A). A data structure with a fixed sequence of elements
B). A primitive data type
C). A data structure that stores key-value pairs
D). A single numerical value
What is a complex data type in programming?
A). Primitive data type
B). Data type composed of multiple elements
C). Single integer value
D). Single character value
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
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
Which data type in Python is immutable?
A). List
B). Dictionary
C). Set
D). Tuple
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 function is used to add an element to the end of an array in JavaScript?
A). push()
B). append()
C). insert()
D). add()
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)
Which method converts a JavaScript object into a JSON string?
A). JSON.convert()
B). JSON.toString()
C). JSON.stringify()
D). JSON.parse()