React's 5th Anniversary: From Internal Project to Open Source Superstar

On React's fifth anniversary, this post looks back at its journey. From Facebook's internal projects BoltJS and FaxJS used for building complex web applications, to eventually becoming a functional UI library, React underwent multiple iterations and API refactoring. The post also covers the introduction of JSX, and Instagram's role in pushing React to open source. React's success wasn't overnight; it's a result of continuous team improvements and active community involvement.