Recent questions tagged Instance

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instance variables - In Ruby, why after starting irb, foo.nil? says undefined error, and @foo.nil? gives "true", and @@wah.nil? gives error again?

Same in Ruby 1.8.7 and 1.9.2: $ irb ruby-1.8.7-p302 > foo.nil? NameError: undefined local ... differently than a local and class variable? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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instance variable/ method argument naming in Objective C

What conventions are people here following for naming of instance variables and method arguments - particularly when ... the aesthetic myself. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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instance method - Adding attributes to instancemethods in Python

I bumped into this behaviour when trying to get class-decorators and method-decorators to play nicely together. ... have no idea why. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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instance - How to use Ruby's self keyword

From what I understand about self, it refers to the current instance of the class. Isn't this the default behaviour ... what is the use of self? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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