Notes

Outline

Announcements Project 2 is assigned today

Unannounced Quiz 2 Take out a sheet of paper and stow everything else, including phones, CD players, calculators, computers, books, notes ...

Unannounced Quiz 2 Answer All Questions: 1. Give an JavaScript assignment statement that adds 1 to variable y. 2. Write one million as a JavaScript number. 3. What is the result JavaScript expressions: a) 5 + 5 b) '8' + '9' c) 1 + '5'

Programming Techniques The best way to learn programming is to try it

Begin Writing JS Step 1.  Build HTML structure and first command. Check Begin by inputting a number

Result

Focus on the Form

The Big Event When programming the action for event handlers, always ask, “What do I want to happen on this event?” In this case, get the value out of the x1 window, add 2 to it and put the result into the x2 window for display. x2.value = x1.value + 2 or onChange=" x2.value = x1.value + 2"

The Result

A Tiny Trick

JavaScript Processed 1st JavaScript is processed while browser is parsing the HTML, i.e. figuring out the command’s structure

Ask JavaScript To Write document.write( ) puts HTML on page

Project 2: Exercise

Project 2: Exercise

Orange Concentrate

Project 2 Plan Four Parts a) Exercise with Memory Bank b) Create brown keys c) Create white pattern d) Generate pattern & finish