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

instance method

Exception#message

exception.message → string

static VALUE
exc_message(VALUE exc)
{
    return rb_funcallv(exc, idTo_s, 0, 0);
}

Returns the result of invoking exception.to_s. Normally this returns the exception’s message or name.

See also #inspect #set_backtrace #full_message #to_json also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0