A brilliant idea, PLEAC - Programming Language Examples Alike Cookbook tries to implement a number of standard programming constructs in as many language as possible. Each language implementation is done in 'idiomatic' fashion, i.e. in the style programmers native in the language would do it (module personal style considerations of course)

This is so much more interesting that the usual 'Why I hate language XXX' articles about scripting languages found all over the net. The usually follow the template 'I completely gave up on language XXX when I tried to implement task T' (task T) is then something for which the writers favourite language, YYY has native support whereas the implementation in XXX is usually badly done, and certainly require the use of some arcane library