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Hey guys this is Caleb with desktop's dot com and again congratulations on finishing the core data section



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of the Iowa loving course.



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Amazing work.



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So this video is a little challenge for you to make goalpost even cooler and even better.



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So as you know in goalpost we can create goals we can save them to our table view we can remove them



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we can set progress.



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Your challenge is to add an Undo feature k.



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Your job is to figure out a way that you can add this view make it pop up whenever you delete a cell.



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So let's go ahead and let's go through the process.



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Eat healthy.



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It's a terrible goal by the way it's not specific.



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And let's just say two.



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OK so let's say you finish this goal.



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It's complete and you want to get rid of it.



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So you press delete.



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But what you want to happen is you want it to show here goal removed then you want to be able to click



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undo and have it reappear in your table view.



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Now you have what you need to do this.



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I believe in you.



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This is your challenge.



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Add an Undo feature to goalpost.



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Amazing work again on the Chordata section.



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And let's head over to the next section now.