ruby on rails - Hide part of an email address -

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what's best way hide 4 characters before @ sign of email address using ruby eg

fakename@example.com = fake####@example.com

it's going used in view when display list of testimonials , don't want display whole address.

my long way round attempt:

name = 'fakename@example.com'.split("@")[0] email = 'fakename@example.com'.split("@")[1] new_address = name [0..-4] + "@" + email

try below handle short names a@example.com 

'fakename@example.com'.gsub(/.{0,4}@/, '####@')

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