How to get all the emoji scalars? Why there is no `Character.isEmoji`?

Using Swift
14

The text presentation selector ( U+FE0E ) dictates that it must not be rendered as emoji

It's not consistent:

In Xcode playground, it does as you said only when print to console area but not on the right side output area:

let renderAsText = "😀\u{FE0E}"     // "😀︎"  <== this is shown as emoji on the right side output area
print(renderAsText)     // print out text form of 😀︎ in console output, but as "😀︎\n" on right side output area

But in iOS SwiftUI view, it output the emoji in both the SwiftUI.Text render and print out in console:

let _ = print("\u{1F600}\u{FE0E}")  // this print out 😀 in console, not text!
Text("\u{1F600}\u{FE0E}")   // this render on screen 😀, not text!

Is SwiftUI text rendering broken? It's like this in both iOS and macOS.

Edit: I tried in Terminal.app with zsh and a Swift console program, both show emoji:

print '\U1f600\UFE0E'
😀︎
cat emoji.swift
print("\u{1F600}\u{FE0E}")
swift emoji.swift
😀︎

So only in the Xcode Playground console area, :grinning:︎ follow by text presentation selector ( U+FE0E ) is shown as text. Since it works in this one case, I think the macOS font rendering is capable of respecting the text presentation selector ( U+FE0E ). But why doesn't it work in those other cases?

Edit: iPad Playground also not work, only show as regular emoji :grinning:︎

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