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
Which of the following represents a complex data type in JavaScript?
A). Boolean
B). Undefined
C). Null
D). Array
How do you access an array element at a specific index in JavaScript?
A). Using square brackets notation (arrayName[index])
B). Using dot notation (arrayName.elementName)
C). Using parentheses notation (arrayName(index))
D). Using curly braces notation (arrayName{index})
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
Which data type represents a collection of values in JavaScript?
A). Object
B). Array
C). String
D). Number
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 return statement used for in a function?
A). To stop the execution of the function
B). To specify the function's name
C). To return a value from the function
D). To define object properties
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 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
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 */ }