Re^4: How to split, join and trim leading / leading white space

say join(" ", split /(..)/, "e58c97e4bab0") =~ s/^\s+//r =~ y/ / /rs;

Augh! No! split /(..)/ makes a list with empty strings in it that you don't want. Those result in extra spaces when you join, which you then have to mop up with silly regexes. Use one of these instead:

say join(" ", "e58c97e4bab0" =~ /(..)/g);
say join(" ", unpack "(a2)*", "e58c97e4bab0");
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Re^5: How to split, join and trim leading / leading white space by kcott (Archbishop) on Sep 07, 2017 at 06:15 UTC
"`split /(..)/` makes a list with empty strings in it ..." Already explained in Re: How to split, join and trim leading / leading white space and Re: How to split, join and trim leading / leading white space: this is not new information. "Use one of these instead: ..." Your alternative solutions are fine. They should be directed to the OP, as a first-level response. Your good suggestions, appearing at "Re^4", will be hidden by default. — Ken	[reply] [d/l]
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