Simon Willison’s Weblog

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10 Uses for Blocks in C/Objective-C. Part of the Cocoa for Scientists series, which is by far the best free Objective-C / Cocoa tutorial I’ve seen anywhere. # 16th November 2009, 2:27 pm

Mac OS X 10.6 Snow Leopard: the Ars Technica review. The essential review: 23 pages of information-dense but readable goodness. Pretty much everything I know about Mac OS X internals I learnt from reading John Siracusa’s reviews—this one is particularly juice when it gets to Grand Central Dispatch and blocks (aka closures) in C and Objective-C. # 1st September 2009, 7:05 pm

Switching from scripting languages to Objective C and iPhone: useful libraries. Matt Biddulph collects together some very useful libraries for developers just getting started with Objective-C (though I’m not too keen on the title). # 27th January 2009, 5:50 pm

Blocks in Objective-C. Closures are coming soon to Objective-C—interesting syntax, a regular curly brace block preceded by a caret ^{ ... }. # 29th December 2008, 7:38 pm

An interview with 280 North on Objective-J and Cappuccino. Fantastic comment thread with involvement from the guys who created Objective-J. Just like Objective-C, Objective-J is a preprocessor that runs against regular JavaScript source files so you can use JavaScript and Objective-J idioms interchangeably. # 7th June 2008, 7:40 pm

280slides and Objective-J. 280 slides uses an Objective-C clone written in 13KB of JavaScript. I have to admit I’m completely baffled as to why you would want to use Objective C instead of JavaScript, but evidently it worked fantastically well for them. # 7th June 2008, 4:09 pm

Programming Nu (via) Interesting new programming language—Lisp style syntax, Ruby style semantics, built in Objective C bridge so you can access Cocoa APIs directly. # 1st October 2007, 9:49 pm