Three Basics JavaScript (JS) Concepts

1. JS adds interactivity to web pages
• Lets web designers collect and share information easily and quickly
2. Without JS web pages are just text and images
• Create rollover images, pop-ups, forms, alerts, and lots more
3. JS is FREE!
   • There is no cost to use JS in your web pages
   • JS is similar to computer programming languages, but A LOT easier to learn

Key JavaScript Vocabulary

1. Statements -tell the web browser what to do
2. Comments -add comments to the JS code (like comments in HTML)
3. Variables -store information to be used in JS statements and functions
4. Operators -used to store and add values (= +)
5. Comparison -used to test for true or false
6. Conditional Statements -used to perform different actions based on different conditions (If...Else and Switch)
7. Pop-up Window -Used for Alerts, Confirmation, and Prompts
8. Function -A code block that can be executed on an event or when called
9. Lots of other useful codes coming soon!

week oneDocument with lots of simple JS

full sourcehttp://www.w3schools.com/js/default.asp