denniss questions

• Ruby class-level instance variable
• Shopify App requesting permission to new scope
• Using Header as download link in PHP
• Do two classes of the same class have the same hashcode and are they considered equal?
• Div side by side
• Technology behind real-time polling
• Animation in libgdx
• recaptcha plugin for rails
• JavaScript's version of ActionScript's Event.ENTER_FRAME event?
• Algorithm: Find index of 2nd smallest element from an unknown array

denniss answers