Which of the following is a core feature of LWC?

The core feature of Lightning Web Components (LWC) is that it encourages the use of HTML templates and JavaScript. LWC allows developers to build reusable components using standard web technologies by leveraging HTML for the structure and content of the component and JavaScript for its logic and interactivity. This aligns with the modern web development practices and provides a streamlined approach for building user interfaces within Salesforce applications.

Utilizing HTML templates allows developers to define the user interface declaratively, making it easier to read and maintain. Coupled with JavaScript, which provides the ability to add dynamic functionality and handle user interactions, LWC significantly enhances the development experience on the Salesforce platform. This combination not only draws on the strengths of native web standards but also optimizes the performance of applications due to the efficient rendering model of LWC.

Developers can also take advantage of various features that promote better organization and modularity in their applications, all thanks to the foundational support for HTML and JavaScript provided by LWC.