Maintenance Ruby 3.4 gets fixes, but no new features. Switch to Ruby 4.0 →
instance method
String#length
() -> ::Integer
length → integer
string.c
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VALUE
rb_str_length(VALUE str)
{
return LONG2NUM(str_strlen(str, NULL));
}
Returns the count of characters (not bytes) in self:
Example
'foo'.length # => 3 'тест'.length # => 4 'こんにちは'.length # => 5
Contrast with String#bytesize:
Example
'foo'.bytesize # => 3 'тест'.bytesize # => 8 'こんにちは'.bytesize # => 15