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Idiom #169 String length

Assign to integer n the number of characters of string s.

This can be different from the number of bytes of s.

Illustration
my $n = length( $s );
std.range;
size_t n = s.walkLength;
import std.uni, std.range;
size_t n = s.byGrapheme.walkLength;
size_t n = s.length;
int n = s.length;
n = String.length s
import "unicode/utf8"
n := utf8.RuneCountInString(s)
n = length s
var n = s.length;
int n = s.length();
local n = utf8.len(s)
$n = mb_strlen($s, 'UTF-8');
uses LazUtf8;
n := Utf8Length(s);
uses sysutils;
n := s.length;
uses LazUtf8;
n := length(s);
n = len(s)
n = s.length
n = s.size
let n = s.chars().count();
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Idiom created by

programming-idioms.org 
my $n = length( $s );
size_t n = s.walkLength;
size_t n = s.byGrapheme.walkLength;
size_t n = s.length;
int n = s.length;
n = String.length s
n := utf8.RuneCountInString(s)
n = length s
var n = s.length;
int n = s.length();
local n = utf8.len(s)
$n = mb_strlen($s, 'UTF-8');
n := Utf8Length(s);
n := s.length;
n := length(s);
n = len(s)
n = s.length
n = s.size
let n = s.chars().count();