[acjohnson55]

But if you want backward compatibility, you still probably want to use something like Lodash. I'd also argue that Lodash's/Underscore's interface is far better thought out than the standard library. The standard library has so many absurd gotchas, like `["2", "2", "2", "2"].map(parseInt)`. The verbosity of Javascripts lambdas also makes composition of simple parts more arcane looking than necessary, and having a whole bunch of composable/chainable utility functions does a lot to help people write self-documenting code.

[nailer]

> But if you want backward compatibility, you still probably want to use something like Lodash.

A few years ago, sure, but these days I'd use es6-shim. The code will be shorter, have more documentation around the internet, and when old browsers die you won't have to change anything to be on standard JS.

[jdd]

lodash offers features and performance over es5/6 built-ins.