Blocks & Procs in Ruby

I have started learning Ruby, and I have read a couple of tutorials and I even bought a book (\"Programming Ruby 1.9 - The Pragmatic Programmers\' Guide\"), and I came across somethi开发者_开发百科ng

Is it possible to pass more than one block to a method in Ruby?

Something like: def foo(&b1, &b2) b1.cal开发者_如何学Pythonl b2.call end foo() { puts \"one\" } { puts \"two\" }

Objective-C Block which accepts an object and returns a boolean

Can you please write for me a block which conforms to this definition: (BOOL(^)(id))block. The closest I have gotten is:

How should I manage memory for C block feature? (Apple extension)

Apple introduced a closure in C as name of \'block\'. Should I manage memory for the blocks? If so, wha开发者_运维问答t do I have to do?Like variables with function scope in plain C, blocks literals i

What's keeping my input element from displaying like a block element?

http://jsfiddle.net/aam7J/ How wo开发者_C百科uld I induce div-like behaviour on the input element? Specifically, how can I induce the width to expand such that its outer width including margin fills

Blocks within blocks

I\'m having problems displaying nested blocks in a template. eg. {% for category in categories %} //code to display category info

Getting Past Facebooks Iframe Block

Well on Facebook they seem to have a 开发者_运维技巧block which prevents you from loading an iframe of their website.

Django Template block tag

How many different block tag开发者_高级运维s like these exist? {% block %} In other words if I have a parent template and child templates with multiple block tags. How does Django know where to ins

jackpot block b歌词？