Why can't I define vars in caller's binding using eval?

Christopher_JSBott · May 22, 2008, 5:40am

In other words, why can’t I do this?

def f(b)
eval(“x = 10”, b)
end

f(binding)
puts “x = #{x}”

Is there any way to make that code work (besides obviously setting x
to something before calling f).

Thanks.

Christopher_JSBott · May 22, 2008, 11:21am

On 22 May 2008, at 04:39, Christopher J. Bottaro wrote:

In other words, why can’t I do this?

def f(b)
eval(“x = 10”, b)
end

f(binding)
puts “x = #{x}”

Fred