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73 lines
1.0 KiB
Ruby
73 lines
1.0 KiB
Ruby
def a ; "x" end
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1.times do | x |
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puts a # not a local variable
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a = 3
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puts a # local variable
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end
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a = 6
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puts a
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1.times do | x |
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puts a # local variable from top-level
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a += 3
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puts a # local variable from top-level
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a, b, (c, d) = [4, 5, [6, 7]]
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puts a # local variable from top-level
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puts b # new local variable
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puts c # new local variable
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puts d # new local variable
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end
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# new global variable
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$global = 42
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# use of a pre-defined global variable
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script = $0
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class A; end
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x = A
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module x::B
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x = 1
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end
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class << x
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x = 2
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end
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class x::C < x
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x = 3
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end
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def x.foo
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x = 4
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end
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module M
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var = 1
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foo = <<-EOF
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#{var}
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#{fun}
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#{var2 = 10}
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#{var2}
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EOF
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end
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module ExceptionVariable
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class MyException < Exception
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end
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x = 1
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puts x
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begin
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raise MyException
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rescue MyException => x # reuses `x` from above
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puts x
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end
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puts x # prints `MyException`, not `1`
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end
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module ParameterShadowing
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x = 1
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xs = [1, 2, 3]
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xs.each do |x|
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puts x
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end
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puts x # prints `1`, not `3`
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end |