In Ruby, how to write a method to display any object's instance variable names and its values
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by Jian Lin
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Published on 2010-06-16T23:02:37Z
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2010/06/16
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Given any object in Ruby (on Rails), how can I write a method so that it will display that object's instance variable names and its values, like this:
@x: 1
@y: 2
@link_to_point: #<Point:0x10031b298 @y=20, @x=38>
I also want to be able to print <br> to the end of each instance variable's value so as to print them out nicely on a webpage.
the difficulty now seems to be that not every instance variable has an accessor, so it can't be called with obj.send(var_name)
(the var_name has the "@" removed, so "@x" becomes "x")
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