Javascript
StackOverflow is full of lengthy custom functions changing value of a specific URL query parameter either with pure Javascript or jQuery, while nowadays it is a really simple task.
Several days ago... no, hold on - it was several *years* ago now! So, several years ago I have done few very basic performance tests to see how node.js server behaves compared to Apache when serving very simple pages.
What to do with errors like [WebSocket] cannot connect to Web Socket server at ws://123.456.789.123:8080/socket.io/flashsocket (SecurityError).
node.js is a server side Javascript framework built on top of Google's V8 Javascript Engine, aiming to help developers in building highly scalable and concurrent network applications, by using purely evented non-blocking I/O.