[Tommah]

For a while, it seemed that a new JS framework was coming out every day. There was even a "JavaScript framework of the day" blog, which unfortunately I can't find now. But things really slowed down several years back... I want to say 7 years ago or so. React really does seem to have won, as the other commenters have said. It seems to be the main software taught by coding bootcamps and the like. I suspect that the confusion caused by the Angular 1 -> Angular 2 transition helped React gain the upper hand. There were other JS frameworks floating around that had a considerable number of users (including Ember, Meteor, and Backbone, off the top of my head), but they were nowhere near as popular as React or Angular. (That's my impression, anyway.)

Irrespective of the merits of React, it is sad to see the monoculture that has formed around it. I get the same kind of vibes as I did back when Java was everywhere, and comp sci graduates used to have the impression that Java = programming.