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

instance method

Exception#to_s

() -> ::String

to_s → string

static VALUE
exc_to_s(VALUE exc)
{
    VALUE mesg = rb_attr_get(exc, idMesg);

    if (NIL_P(mesg)) return rb_class_name(CLASS_OF(exc));
    return rb_String(mesg);
}

Returns a string representation of self:

Example

x = RuntimeError.new('Boom')
x.to_s # => "Boom"
x = RuntimeError.new
x.to_s # => "RuntimeError"

See also #set_backtrace #message also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

‹ prev#set_backtrace