How can I disable the feature that when I hit "return" the cursor will be placed on the next line with tabs?
Xcode tip #21: If you've copied code from elsewhere, such as Hacking with Swift or Stack Overflow, there's a good chance you'll paste in something with incorrect indentation. Xcode can fix this with one shortcut: select the code you want to fix, then press Ctrl+I to reindent it.
If you're using IDLE, you can use Ctrl+] to indent and Ctrl+[ to unindent.
Xcode - preference(or press keys command+,) - Indentations
There you can disable it.
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