JavaScript

This page provides general notes on using JavaScript in the platform.

About JavaScript

JavaScript is an object-oriented language that allows for functional programming. It is the language that drives much of the world wide web.

Learn more:

• JavaScript: The Good Parts (highly recommended)

Accessing Record Variables

You access record data using the Document Object Model (DOM). Using the Sample Order Processing System, you might access a field in an OrderItem record like this:

var val =  document.getElementById("item_quantity").valu;

Or, using Template:Jquery functions to shorten the syntax:

var val = $('input[name=item_quantity]').val();

Using JavaScript in the Platform

JavaScript can be used in a variety of ways

• Field Scripting - Add JavaScript code to take actions on a Field (On Change or On Focus)
• Form Scripting - Add JavaScript code to a Form (On Load or On Save)
• Post Selection JavaScript - Perform validations on Lookup Fields using JavaScript
• Action buttons - Add action buttons when displaying a record
• Manage Related Information sections - Add action buttons to sections that display Related Records
• In a JSP/HTML Page - Make things happen on the client side to reduce the load on the server.

Reference Information

• JavaScript Functions and Variables
• Global JavaScript Variables
• Template Variables for Actions and Components
• AJAX and REST