marcel questions

• Why have to call resignFirstResponder() asynchronously on the main queue to dismiss the keyboard
• Why Swift global functions as a special case of closures capture global variables?
• Why does the 'this' keyword inside event handlers of document.body refer to the global window object?
• Admob Framework class not detected by Xcode interface builder
• Why document.implementation.hasFeature() always return true?
• Can pseudo-elements be used alone in CSS?

marcel answers