How to add button to SharePoint 2013 ribbon using JavaScript

Question

Is it possible to use JavaScript to dynamically add a custom button to the ribbon?

I want to add a button next to the upload document button in a document library.

Any ideas or code how to do that?

Answer 1

Based on the hashtag 2013 I guess your question is for Sharepoint 2013?

Back in time I created a JS library to do what you're looking for: https://github.com/Aymkdn/RibbonPlus

Answer 2

You can add button to the ribbon using Custom Actions.

Check below references for more information & code:

1. Create Ribbon Custom Action Using JavaScript Object Model In SharePoint 2016 And Office 365

2. Create custom actions to deploy with SharePoint Add-ins - Documentation

3. How create custom action button on sharepoint online command bar without spfx?