Define and Run JavaScript Code
How to Define JavaScript Functions
To add or edit the JavaScript functions of your elements, open the JavaScript editor by clicking "..." on the JavaScript property of the element:
The example below shows a JavaScript function defined locally for a Web Screen:
How to Run JavaScript
You can run JavaScript code in your web application in the following ways:
- Using the Extended Properties of Web Screens or widgets;
- Within unescaped Expressions;
- Using the RunJavaScript action of the HTTPRequestHandler extension.
In all the cases, the JavaScript code will run in the context of the browser.
Extended Properties Example
The example below shows a JavaScript function that is invoked when the onclick event occurs in a button:
Since the value of an Extended Property is an expression, you can also type the JavaScript source code directly in the Extended Property value:
Unescaped Expressions Example
You can use unescaped Expressions to add JavaScript at a specific point of your Web Screen, setting the Escape Content property to No:
RunJavaScript Action Example
In your Action Flows, either in a Screen Action or a Server Action, you can use the RunJavaScript action of the HTTPRequestHandler extension to get your JavaScript code to run in the context of the browser:
