Explore the concept of reactivity in JavaScript in this detailed video. I start by explaining what reactivity is and how it can be implemented in vanilla JavaScript. From there, we dive into its evolution across major frameworks like React, Angular, Svelte, and Vue.js. Discover how each framework handles reactivity, the changes they've undergone to optimize it, and where we stand today in the ever-evolving landscape of web development. Whether you're a seasoned developer or just starting out, this video will provide you with a thorough understanding of reactivity and its impact on modern web frameworks. #React #Angular #Svelte #VueJS