It took a month to teach angular and a year to become proficient. Knockout or backbone + handlebars were similarly large commitments. React took a day or two to

It took a month to teach angular and a year to become proficient. Knockout or backbone + handlebars were similarly large commitments. React took a day or two to learn and less than a a month to completely master. I also hear about “react doesn’t have one way of doing thing’s built in”, but it wouldn’t have been as successful if it had. It ate up other frameworks because it was so easy to integrate. Need more performance in your angular app? Just add an ng-react component. Have an extensive backbone project? You can just gradually swap in react to replace your mustache templates and leave backbone alone. Have a jQuery widget that’s getting hard to maintain? Change to React and the rest of the page renders on the server like it always did. And of course, you could greenfield with flux, rxJS, or whatever other thing worked for your company. But if they hadn’t been flexible from the start, there wouldn’t have been room to create and test things like reactive programming, redux, mobx , etc