Which version of Microsoft Internet Explorer first supported JavaScript?

The first version of Microsoft Internet Explorer that supported JavaScript was Version 3. This introduced key features of the language, allowing developers to create dynamic web content and interactivity within the browser. JavaScript, originally developed by Netscape, became increasingly important for web development, and Internet Explorer's adoption of it in Version 3 signaled the beginning of broader compatibility across different browsers. As web standards evolved, subsequent versions continued to improve and expand upon JavaScript support, but it was Version 3 that first implemented the core functionalities needed to execute JavaScript code within the browser environment.