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I gave a three hour JavaScript tutorial at ETech this morning, aimed at people with previous programming experience who hadn’t yet dived deep in to JavaScript as a programming language. It seemed to go pretty well—some good questions were asked at various points and a few people told me afterwards that they had found it interesting. I didn’t finish the presentation in time to get handouts made up—
simon.incutio.com
Simon Willison - http://simonwillison.net/ Notes made in preparation for a three hour tutorial at ETech in San Diego, March 6th 2006 Introduction # My name's Simon Willison, and the title of this session is "A re-introduction to JavaScript". Why a re-introduction? Because JavaScript has a reasonable claim to being the world's most misunderstood programming language. While often derided as a toy, b
Higher quality versions of these slides are available on Flickr. You can also read the accompanying notes, and my blog entry about the talk.
Joshua Schachter, del.icio.us ============================= Things to look out for when building a large application. Browser quirks. CSS/JavaScript/rendering. IE caching. Scaling: avoid early optimization. SQL doesn't map well to these problems - think about how to split up data over multiple machines. Understand indexing strategies, profile every SQL statement. Nagios or similar for monitoring.
JavaScript’s support for regular expressions is generally pretty good, but there is one notable omission: an escaping mechanism for literal strings. Say for example you need to create a regular expression that removes a specific string from the end of a string. If you know the string you want to remove when you write the script this is easy: var newString = oldString.replace(/Remove from end$/, ''
Inspired by Andy, I decided to have a crack at something I’ve been thinking about trying for a long time. document.getElementsBySelector is a javascript function which takes a standard CSS style selector and returns an array of elements objects from the document that match that selector. For example: document.getElementsBySelector('div#main p a.external') This will return an array containing all o
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