Billie questions

• What is the `pipe` method in NodeJS?
• How to use events and delegate to send data between forms?
• When should I announce "throws", and when not? [duplicate]
• Flask-socketio - failed to set "Access-Control-Allow-Origin" response header
• What does a template class without arguments, `template<>` mean?
• Must a reference type be initialized in constructor initialization list?
• document.getElementById() doesn't work? [duplicate]
• Android onClose event
• The relation between Forward declaration and destructors
• How to use multi color in richtextbox [duplicate]

Billie answers