John Hoffman questions

• Where does the Chrome web store "Support" tab come from?
• Why do the type parameters have to be repeated twice?
• How can postMessage be used as an alternative to nextTick or setTimeout(__, 0)?
• Determining the sample rate of a large audio file in javascript?
• Append a suffix to each regex match in python?
• How do I test if my MySQL update query was successful in CodeIgniter? [duplicate]
• How do I concisely return the first result in a Code Igniter query?
• What does it mean to flush file contents in Python?
• Why does my jQuery Mobile footer appear and then disappear when a user clicks the background?
• How can I detect when a global variable is set in javascript?

John Hoffman answers