Video Tutorial: Objective-C Blocks

Learn about blocks, one of the coolest and most useful features in Objective-C, but with some funky syntax! By Ray Wenderlich.

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Video Tutorial: Objective-C Blocks

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Your challenge is to download the challenge starter project and follow the instructions in AppDelegate.m. Basically, use block syntax to order some soup using order:withCompletionHandler: on the Ray class. Also be sure to read and understand all the code in the project.

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  • The diagram on the “Declaring a Block” slide has the angle bracket (^) for the variable name outside the parenthesis, but it should be inside the parenthesis like in the code example below the diagram.


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