I can think of two main areas that jQuery is useful in which have diminished in importance over the years a) smoothed over differences between browsers. With t

I can think of two main areas that jQuery is useful in which have diminished in importance over the years a) smoothed over differences between browsers. With the web being taken more seriously by everyone, the browser implementers are much more careful about all following the same standard so with every year that goes by there are fewer cross browser quirks to worry about (it's still a major pain today though) b) providing convenience methods for manipulating the dom and working with data etc. I think jQuery has less of a role to play since ES5 and ES6 are how javascript is written nowadays and have more advanced features than js did in jquery's heyday. Also, for advanced client side apps, frameworks like angular and ember also provide such features.