JavaScript Programming A detailed look at some Javascript …

JavaScript Programming A detailed look at some Javascript ...Short Description
JavaScript Programming. EIW Javascript Programs. 2. A detailed look at some. Javascript Applications. Calculator/Form Field Validation. Animation …

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Content
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EIW Javascript Programs 1
JavaScript Programming
EIW Javascript Programs 2
A detailed look at some
Javascript Applications
Calculator/Form Field Validation
Animation
EIW Javascript Programs 3
Calculator/Form Field Validation
Issues
?Button press event.
?Accessing form field values.
?Dealing with type conversions.
?Formatting output.
?Input field validation.2
EIW Javascript Programs 4
Creating the HTML Form

Value for X
Value for Y

Sum: X+Y:
Product X*Y:

onClick="calc();" />

id so we can access via getElementById
We could make the table pretty by
putting it in a table.
EIW Javascript Programs 5
Getting the button to run some
Javascript

onClick="calc();" />
This is a Javascript Program!
The program calls the function calc(),
which we need to write!
EIW Javascript Programs 6
DHTML Documents
?Documents that include JavaScript often
include a section inside the HEAD that
defines some global variables and some
Javascript functions.
?This code can go anywhere (can be in the
body) as long as it’s inside

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