| Versión JavaScript | Versión Netscape Navigator | Versión Internet Explorer |
| JavaScript 1.0 / JScript 1.0 | Netscape 2.0 | Explorer 3.0 |
| JavaScript 1.1 / JScript 3.0 | Netscape 3.0 | Explorer 4.0 |
| JavaScript 1.2 / JScript 5.0 | Netscape 4.0 o superior | Explorer 5.0 o superior |