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One of the really great benefits building a mobile Web app is that you can use any custom JavaScript, a 3rd party library or something you wrote yourself. In Appery.io Mobile Apps Builder, you build mobile Web apps (which alter can be exported as native with PhoneGap) and so you can use any custom JavaScript. How do get the custom JavaScript code in the app? There are three ways.

First is using Run Custom JavaScript action attached to any HTML event. For example, let’s say you want to invoke some custom JavaScript on button click:

This approach works well but usually should be limited to just doing “small” tasks.

The second approach allows you to import a full JavaScript file/library into your app. It’s done by creating a new JavaScript file (asset) and you get the following options:

As you can see, you can easily create a file by importing it from a URL or load it from a file.

The last option is to add a JavaScript resource via project profile (Project > Project Profile > External resources):

This option will link to the specified file.

Happy mobile development.