Xcode: difference between BACKSPACE + CMD and BACKSPACE?

Question

I don't understand the difference between using BACKSPACE+CMD and just BACKSPACE.

I see that when I use BACKSPACE+CMD on a element in the Storyboard, that element becomes opaque, and using just BACKSPACE it deletes the element. I can't find the answer in the documentation.

Answer 1

As far I know, when opaque, it means the component (constraint or UI element) has been unistalled for a particular size class. For me, the combination is Command + Delete.

From About Designing for Multiple Size Classes (in bold the key part).

With size classes, a storyboard or xib file can be used for any available screen area. You build your interface as it will look in most sizes, then update only the parts that need to change when the available screen size changes.

A size class identifies a relative amount of display space for the height and for the width. Each dimension can be either compact, for example, the height of an iPhone in landscape orientation, or regular, for example, the height or width of an iPad. Because much of the layout of an app does not need to change for any available screen size, there is an additional value, any.

Hope it helps.

P.S. Did you check the key binding for your Xcode?