From: Michael Hartl <mhartl@...>
Date: 2006-03-21T08:13:51+09:00
Subject: Suppressing printing of evaluated expressions in irb

I've looked all over, but I can't figure out how to suppress the
printing of evaluated expressions in irb.  Ordinarily, this is no
problem:

irb(main):001:0> a = []
=> []

But what if the thing returned is huge?

irb(main):001:0> b = function_returning_something_huge
<disaster>

In Python, the interpreter suppresses the printing of the expression if
there is assignment, but not otherwise:

>>> a = []
>>> a
[]
>>> b = function_returning_something_huge()
>>> b
<disaster, but I asked for it!>

How do I get the same or similar behavior in irb?

Thanks in advance,

Michael