How to clear vim registers effectively?

Question

Registers in vim are a great feature to store text snippets and even to run commands on the text stored within them. However, I\'m a tidy person and tend to clean things up when

Answer 1

Since that venerable answer on the mailing list, linked by @romainl, we have setreg('a', []) that clears the register.

Thus, the code could become:

let regs=split('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789/-"', '\zs')
for r in regs
  call setreg(r, [])
endfor