# Advanced

<figure><img src="https://125370873-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzdpN2Lz0hzXpnNScDzVt%2Fuploads%2FmtA4cvICp9hrL3boWVzX%2Fimage.png?alt=media&#x26;token=4f07d6a9-1f9c-4133-9ab4-29926f5be10d" alt=""><figcaption></figcaption></figure>

#### Preload Javascript

Write the JavaScript code that can be applied to all the apps in the workspace. The code set acts as the global function library for the apps deployed.

#### Preload CSS

Write the style blocks that can be applied to all the apps in the workspace. The CSS acts as the global style for the apps deployed.

#### Javascript Library

Add the Javascript libraries that will be preloaded when the apps are initialized. These libraries will be referred from the external application sources.

In this context, a third-party library is a compiled JavaScript code saved into a single .js file and the URL to the .js file can be referred from the app. Hence, the app can be extended to use the library.

<figure><img src="https://125370873-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzdpN2Lz0hzXpnNScDzVt%2Fuploads%2Fgit-blob-aef6773c3c8ec7c0683a38d3b548a19a8f28cf3f%2Fimage%20(248).png?alt=media" alt=""><figcaption><p>Enter a valid URL to the library and add it to the app</p></figcaption></figure>

| Icon Description                                         | Icon                                                                                                                                                                                                                                           |
| -------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| View the JavaScript file from the referenced application | <img src="https://125370873-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzdpN2Lz0hzXpnNScDzVt%2Fuploads%2Fgit-blob-88ee6e0a81bf2dc4f11132a97cb872642d181ae1%2Fimage%20(173).png?alt=media" alt="" data-size="original"> |
| Download and install the library into the workspace      | <img src="https://125370873-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzdpN2Lz0hzXpnNScDzVt%2Fuploads%2Fgit-blob-a3c0ce2c9107b7b2d4a0b9dc39e884ed13a69eb6%2Fimage%20(174).png?alt=media" alt="" data-size="original"> |
| The JavaScript library is ready for use                  | <img src="https://125370873-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzdpN2Lz0hzXpnNScDzVt%2Fuploads%2Fgit-blob-3798cfbee9e993aa016fe26b38045af8ee42308b%2Fimage%20(175).png?alt=media" alt="" data-size="original"> |