Serializing an emacs lisp hash to file

Question

In emacs lisp, is there a way to serialize a hash table to a file in and then reading it again at a later time?

Thanks

Answer 1

This is easily possible since Emacs 23.2 or so. Check with

(featurep 'hashtable-print-readable)

If this returns t, you can simply prin1 a hashtable to a buffer, save it and read it later.