This research conducts a comparative study on the performance of modern JavaScript frameworks - React, Angular, and Vue.js - in the context of web application development. Using an experimental approach, this study measures various performance aspects including rendering time, bundle size, page load time, and memory usage. The research method involves developing web applications using all three frameworks in different scenarios, as well as interviews with experienced developers. Results show that Vue.js excels in rendering speed and memory efficiency, React demonstrates superiority in handling large-scale dynamic updates, while Angular offers a robust structured architecture. This study also reveals the importance of non-technical factors such as learning curve and community support in framework selection. In conclusion, the selection of an optimal framework should consider project-specific needs, team expertise, and long-term organizational goals. This research provides valuable insights for developers and organizations in choosing the appropriate JavaScript framework for their projects.
 

Javanese language is local content for levels from elementary to high school, the aim of learning Javanese is an effort to preserve Javanese culture. Therefore, to achieve these learning objectives, interactive learning media is needed according to students' needs. The researcher developed material introducing Javanese script, using animation media which was created with the aim of achieving the expected goals in the learning process. The results of this research are audio and video based which students can use in learning media. With this media, students can easily learn about the Javanese script presented by the teacher, this speeds up understanding of the material presented by the teacher.