runw questions

• Can injection still be an issue if all the database operations are done through Mongoose?
• Is there a way to generate pydoc for nested functions? [closed]
• Understanding purely functional persistent binary trees
• Text, string-based chord recognition algorithms?
• "Could not find class android.transition.Transition" exception when pressing back button
• Does the len() built-in function iterates through the collection to calculate its length, or does it access a collection's attribute? [duplicate]
• Why use custom events instead of direct method calling?
• Is there a convention on how to document a JavaScript file with comments? Like function signatures, examples, etc

runw answers