Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

instance method

String#size

() -> ::Integer

size

VALUE
rb_str_length(VALUE str)
{
    return LEN2NUM(str_strlen(str, NULL));
}

Alias of #length

Returns the count of characters (not bytes) in self:

Example

'foo'.length        # => 3
'こんにちは'.length  # => 5

Example

'foo'.bytesize        # => 3
'こんにちは'.bytesize  # => 15

Related: see Querying.

See also #length #shellsplit #slice #shellescape also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0