how to waste your time

step 1:

"fill tone card".split(/.+(?=.+(r))(?=.+(e).+(d))(?=.+(e) (c)(?<=(l).{8})((a)r))(t)(?<=(i).{4})(on)(?=e( ))(?<=(o)n)(?<=(f).+((?<=(l)l) )...)(e)(?<=(t)...)( )c(a)rd/).join("") === "redeclaration of let a"