This course is still relevant for Ember 2, but Ember Octane is out now! We now recommend you take the Ember Octane Fundamentals course.

Check out a free preview of the full Advanced Ember 2.x course:
The "Challenge 11" Lesson is part of the full, Advanced Ember 2.x course featured in this preview video. Here's what you'd learn in this lesson:

In this challenge, students create collapsible piece metadata record about a post with the initial state being hidden. The display of the meta information—hidden or shown—is persisted for each record for the duration of the UI session.

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