JavaScript for Beginners #6 - Introduction to Functions

What is a function in programming?

• A type of variable

• A piece of code that performs a specific task

• A style sheet language

• A mathematical equation

What should a function ideally do?

• Change the color of a webpage

• Create new variables

• Perform multiple tasks at once

• Do one thing and do it well

How do you call a function in JavaScript?

• By using a special operator

• By declaring it with the var keyword

• By typing the function's name followed by parentheses

• Using the call keyword

What is the purpose of parameters in functions?

• To pass information to the function

• To specify the return type

• To initialize variables

• To define the function's name

What does a return statement do in a function?

• Ends the function's execution and returns a value

• Calls another function

• Prints a value to the console

• Changes the value of a variable

How can you change an element's text in JavaScript?

• Using the style property

• By calling a predefined function

• Using document.getElementById().innerHTML

• By changing the element's type

What is the correct syntax to change the color of an element?

• element.color.change()

• document.getElementById().style.color

• document.getElementByColor()

• document.style.color

What are arguments in a function?

• Errors in the function

• A type of function

• External libraries

• Values passed to the function's parameters

What does 'console.log' do?

• Saves data to a log file

• Prints information to the browser's console

• Deletes data from the console

• Changes the color of text

What keyword is used to define a function in JavaScript?

• def

• make

• function

• create