End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Symbol#empty?

sym.empty? → true or false

static VALUE
sym_empty(VALUE sym)
{
    return rb_str_empty(rb_sym2str(sym));
}

Returns whether sym is :“” or not.

See also #downcase #encoding #casecmp? #end_with? also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0