Vanilla JavaScript is considered more lightweight than JavaScript with libraries for several reasons:

Key Factors Contributing to Lightweight Nature

1. No External Dependencies:

   • Vanilla JavaScript: Does not rely on any external libraries or frameworks, which means no additional code needs to be loaded or executed.

   • JavaScript with Libraries: Requires loading and executing library code, which adds to the overall size of the application.

2. Smaller Codebase:

   • Vanilla JavaScript: Typically results in a smaller codebase since developers only write the necessary JavaScript code without any additional library overhead.

   • JavaScript with Libraries: Libraries often include a lot of pre-written code for various functionalities, which increases the overall code size even if not all features are used.