More consistent signature and handling between JavaScript runtime Base64 encode functions.

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## [Unreleased]

### Changed

- More consistent signature and handling between JavaScript runtime Base64 encode functions.

## [3.13.1] - 2022-08-18

### Fixed

			padding = getJsBool(r, f.Argument(1))

		}

		e := base64.URLEncoding

		e := base64.StdEncoding

		if !padding {

			e = base64.RawURLEncoding

			e = base64.RawStdEncoding

		}

		out := e.EncodeToString(in)

// @return error(error) An optional error value if an error occurred.

func (n *runtimeJavascriptNakamaModule) base64UrlEncode(r *goja.Runtime) func(goja.FunctionCall) goja.Value {

	return func(f goja.FunctionCall) goja.Value {

		in := getJsString(r, f.Argument(0))

		if goja.IsUndefined(f.Argument(0)) || goja.IsNull(f.Argument(0)) {

			panic(r.NewTypeError("expects a string or ArrayBuffer object"))

		}

		var in []byte

		switch v := f.Argument(0).Export(); v.(type) {

		case string:

			in = []byte(v.(string))

		case goja.ArrayBuffer:

			in = v.(goja.ArrayBuffer).Bytes()

		default:

			panic(r.NewTypeError("expects a string or ArrayBuffer object"))

		}

		padding := true

		if f.Argument(1) != goja.Undefined() {

			padding = getJsBool(r, f.Argument(1))

			e = base64.RawURLEncoding

		}

		out := e.EncodeToString([]byte(in))

		out := e.EncodeToString(in)

		return r.ToValue(out)

	}

}