JavaScript Basics Quiz

What is JavaScript?

• A web scripting language

• A database

• A server-side language

What are the two types of scripting languages?

• Client-side and Server-side

• Static and Dynamic

• Compiled and Interpreted

What are the five types of primitive data types in JavaScript?

• String, Number, Boolean, Undefined, Null

• String, Integer, Float, Boolean, Null

• String, Number, Object, Array, Function

What is a JavaScript function?

• A block of code designed to perform a task

• A variable

• An object

What is the DOM?

• Document Object Model

• Data Object Model

• Dynamic Object Model

What does the Window object represent?

• The top-level client-side object

• A specific HTML element

• A JavaScript function

What does the 'alert()' method do?

• Displays an alert box

• Opens a new window

• Closes the current window

What is an array in JavaScript?

• A method for manipulating strings

• A type of function

• A collection of items stored in a single variable

What does the 'this' keyword refer to in JavaScript?

• An object property

• A global variable

• The current context of execution

What is the difference between '==' and '===' in JavaScript?

• '==' checks for value equality, while '===' checks for both value and type equality

• '==' is used for objects, while '===' is used for primitives

• There is no difference