Returns the length in characters of the value of EXPR. If EXPR is omitted, returns the length of
$_ . If EXPR is undefined, returns
Like all Perl character operations, length() normally deals in logical characters, not physical bytes. For how many bytes a string encoded as UTF-8 would take up, use
length(Encode::encode_utf8(EXPR)) (you'll have to
use Encode first). See Encode and perlunicode.
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