Client-side web application frameworks, such as Knockout, Backbone, and Ember, existed before AngularJS was released in 2012, but AngularJS was the first to gain widespread adoption and has retained the title of "Most popular front-end framework" for many years. However, because it was the first, there were many rough edges that developers soon found annoying. According to the State of JavaScript 2017 survey, out of all those who have used AngularJS (version 1), only 32.9% would use it again.
Therefore, when React was released in 2013, many Angular developers migrated to React, boosting React's popularity. Satisfaction among React developers is also high, with 93.1% of developers in the aforementioned survey saying they ...
