Simon Willison’s Weblog

Blocks in Objective-C. Closures are coming soon to Objective-C - interesting syntax, a regular curly brace block preceded by a caret ^{ ... }.

Posted 29th December 2008 at 7:38 pm

Recent articles

Two new Showboat tools: Chartroom and datasette-showboat - 17th February 2026
Deep Blue - 15th February 2026
The evolution of OpenAI's mission statement - 13th February 2026

blocks 4 closures 22 objectivec 8 programming 157 syntax 2

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