JavaScript History and Usage

Question 1

What is JavaScript?

Answer 1

JavaScript is a scripting language supported by browsers and primarily used to enhance the interactivity of web pages.

Question 2

Who originally developed JavaScript?

Answer 2

JavaScript was originally developed by Netscape and was initially named LiveScript. It was a collaboration between Netscape and Sun Microsystems.

Question 3

What are common uses of JavaScript?

Answer 3

Common uses of JavaScript include:

• Displaying message boxes, alerts, and prompts
• Editing and validating form information
• Creating new windows with specified size and screen position
• Image rollovers
• Displaying status messages
• Showing the current date
• Performing calculations
• Creating animations

Question 4

What type of scripting language is JavaScript?

Answer 4

JavaScript is an object-based scripting language, meaning it works with objects that are associated with HTML or a web page document.

Question 5

What objects does JavaScript commonly work with?

Answer 5

JavaScript works with the following objects associated with a web page:

• Window object: Represents the browser window.

• Document object: Represents the web page loaded in the browser.

• Element objects: Such as forms, images, hyperlinks, etc., within the HTML document.