Konstantin Vlasenko

An engineer is someone who can make for a dollar what any fool could make for two. – Alan Kay

Tag Archives: JavaScript

#jQuery. Use the .delegate() instead of .live(). Use .on() instead of .delegate()

As of jQuery 1.7, the .live() method is deprecated. Use .on() to attach event handlers. Users of older versions of jQuery should use .delegate() in preference to .live(). When a selector is provided (.on), the event handler is referred to as delegated. The handler is not called when the event occurs directly on the bound element, but only for descendants (inner elements) that match the [...]

[express/connect.static] Set ‘Last-Modified’ to now to avoid 304 Not Modified

Why do I need this? The right answer is: I don’t need that trick! The example below is just to show how to use routes to intercept requests to a static file. Put router before static. app.use(app.router); app.use(express.static(__dirname + ‘/static’)); Add ‘/*’ handler (don’t forget to call next()) app.get(‘/*’, function(req, res, next){ res.setHeader(‘Last-Modified’, (new Date()).toUTCString()); [...]

HTML5 chessboard

<html> <head> <script type=”text/javascript” src=”http://code.jquery.com/jquery-1.6.4.min.js”></script> <script type=”text/javascript”> $(document).ready(function () { // draws a chessboard function drawChessboard() { // define the constants var baseX = 0.5, baseY = 0.5, width = 50; // get the 2D context from the “chessboard” canvas var context = document.getElementById(“chessboardCanvas”).getContext(“2d”); // draws the 8 by 8 chessboard for (var i = [...]

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