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.
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
Which of the following represents a complex data type in JavaScript?
A). Boolean
B). Undefined
C). Null
D). Array
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
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
Which data type represents a collection of values in JavaScript?
A). Object
B). Array
C). String
D). Number
Which of the following statements accurately describes an object in JavaScript?
A). Objects are ordered collections of elements.
B). Objects are collections of key-value pairs.
C). Objects are sequences of characters.
D). Objects are single values.
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 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 a function in JavaScript?
A). A variable
B). A loop
C). A block of code that performs a specific task
D). An object