[louiskottmann]

This is my take as well. I've never come accross a JS project where the built-in datastructures were exclusively used.

One package for lists, one for sorting, and down the rabbit hole you go.

[sensanaty]

I think this is mostly historical baggage unfortunately. Every codebase I've ever worked in there was a huge push to only use native ES6 functionality, like Sets, Maps, all the Iterable methods etc., but there was still a large chunk of files that were written before these were standardized and widely used, so you get mixes of Lodash and a bunch of other cursed shit.

Refactoring these also isn't always trivial either, so it's a long journey to fully get rid of something like Lodash from an old project

[silverwind]

This has improved recently. Packages like lodash were once popular but you can do most stuff with the standard library now. I think the only glaring exception is the lack of a deep equality function.