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Scripting › API implementation › API implementation and reference
Release: Australia · Updated: 2026-03-12 · Official documentation · View source

Client-side scripting

Run JavaScript on the client (web browser) when client-based events occur, such as when a form loads, after form submission, or when a field changes value.

The client-side Glide API provides classes and methods that you can use in client scripts.

Before you begin

Understand the limitations of your scripting environment. For example, client scripts run on forms in the Service Portal or Mobile environments can only include certain APIs. For more information, see Mobile client GlideForm (g form) scripting and migration.

  • Client-side scripting design and processing
    Well-designed client scripts can reduce the amount of time it takes users to complete a form.
  • Client scripts
    Client scripts allow the system to run JavaScript on the client (web browser) when client-based events occur, such as when a form loads, after form submission, or when a field changes value.
  • UI scripts
    UI scripts provide a way to package client-side JavaScript into a reusable form, similar to how script includes store server-side JavaScript. Administrators can create UI scripts and run them from client scripts and other client-side script objects and from HTML code.
  • Catalog client scripts
    Client-side scripts can add dynamic effects and validation to forms. Scripts can apply to service catalog items or variable sets, allowing administrators to use the same functionality that is available on other forms.
  • Mobile client GlideForm (g form) scripting and migration
    Client scripting for mobile is identical to scripting for the web, with some exceptions. All new scripts must conform to certain guidelines. The following items are affected on the mobile platform: client scripts, UI policies, navigator modules, and UI actions.
  • AJAX
    AJAX (asynchronous JavaScript and XML) is a group of interrelated, client-side development techniques used to create asynchronous Web applications.

Parent Topic:Scripting