从 irb 获取所有局部变量或可用方法? [英] Get all local variables or available methods from irb?

问题描述

当我进入 irb 并输入一个不存在的命令时，我收到一条错误消息

When I go into irb and type in a command that does not exist I get an error stating

"undefined local variable or method 'my_method' for main:Object (NameError)"

有没有办法只获取可用的局部变量或方法的列表?这对于探索 ruby​​ 非常有用.

Is there a way to just get a list of what local variables or methods ARE available? This would be really useful for exploring ruby.

推荐答案

在内核、对象和模块中查找方法:例如local_variables, instance_methods, instance_variables.

Look for methods in the Kernel, Object and Module : e.g. local_variables, instance_methods, instance_variables.

还有其他很棒的方法.inspect 是另一个.

Other great methods in there. inspect is another one.

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