instance-variables

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Where to initialize variables in Rails 3

I\'ve been discovering Ruby on Rails during the last 3 months and I\'m fascinated. But several things I don\'t know which is the best way to do them. Now I\'m stack with the initialization ofsome vari[详细]

2023-03-28 21:28 分类：问答
Rails param value returned as an empty int?

This is probably a silly question, but I\'m following a videocast about Rails, right now I\'m working with a controller a 2 views. I\'m having a minor issue with a parameter.[详细]

2023-03-24 22:49 分类：问答
problem while rendering erb template [ruby]

Im reading an old tutorial about instance variables. However i wasnt able to call de instance variable from the CONTROLLER to the VIEW.[详细]

2023-03-23 02:33 分类：问答
iOS - assignment of ivars through properties

Given this instance variable: UILabel *label; And the below property: @property (nonatomic,retain) UILabel *label;[详细]

2023-03-22 06:59 分类：问答
How do I track changes of an instance variable outside of the class in Ruby?

I am fairly new to Ruby and I am building a program that basically works as an interactive orchard, where the user will input what type of tree they want to grow and then give commands to water, prune[详细]

2023-03-22 00:36 分类：问答
Right way to instantiate instance-variables in C++ [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari[详细]

2023-03-21 16:57 分类：问答
Ruby / IRB: set instance variable to private or otherwise invisible?

In Ruby, when I do something like this: class Foo ... def initialize( var ) @var = var end ... end Then if I return a foo in console I get this object representation:[详细]

2023-03-21 08:45 分类：问答
Why do instance variables seemingly disappear when inside a block?

Forgive me, guys. I am at best a novice when it comes to Ruby. I\'m just curious to know the explanation for what seems like pretty odd behavior to me.[详细]

2023-03-21 04:14 分类：问答
Objective-C: Cast super instance variable in subclass?

In Objective-C, in the definition of a subclass (perhaps in the interface file), is it possible to cast an instance variable (ivar) that\'s inherited from the super class?[详细]

2023-03-20 21:24 分类：问答
Debugging simple Ruby class method?

class DobbsyKretts def initialize #Receive idea puts \"Enter an idea, a secret or anything else you want to secretize; hit enter to stop typing and save the file\"[详细]

2023-03-19 02:16 分类：问答