git

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10.downto(1) {|y| puts y}
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(1) (-1e10) (0xabcdef) 'y'
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[x] x->y x.y
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!x ~x x++ x-- x*y x&y
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x*y x/y x%y
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x+y x-y
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x<<y x>>y
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x<y x<=y x>y x>=y
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x==y x!=y
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x&y
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x^y
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x|y
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x&&y
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x||y
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x?y:z
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x=y x+=y x-=y x*=y x/=y x%=y x<<=y x>>=y x&=y x^=y x|=y
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x,y
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