Here are the 3 files for the solution:

In app.js is all the javascript solutions index.html is the html where the textarea is located also underscore-min.js included

**Question

//In the above task, what would happen if there were two actions of a same type? //Then it will be an object with 2 keys repeated, which is incorrect because key should be unique

the question is also answered in the app.js file.

All tasks created for the test were created in separate functions in the app.js file