Alternatives to underscore.js

Question

I am looking for a JavaScript library that manipulates arrays of objects, mainly for filtering, sorting and grouping/counts.

It seems that underscore.js fits the bill, but I'd be interested to explore other options. Underscore has 60+ functions while I just need a handful.

For example, I would expect some datatable libraries to include such features, but I don't know where to look.

Answer 1

I know this is old but did you look at lodash ? From the site:

A drop-in replacement* for Underscore.js. [...]

Custom builds make it easy to create lightweight versions of Lo-Dash containing only the methods you need. To top it off, we handle all method dependency and alias mapping for you.

Answer 2

看看lazy.js ( http://dtao.github.io/lazy.js/ ) 类似于underscore.js 但由于惰性求值，性能显着提升

Answer 3

It's called JavaScript arr.filter , arr.sort , arr.length .

You can apply any array method on an array, popular ones are filter , map and reduce , You can build more complex operations by combining those.

If you want to iterate over objects use

Object.keys(o).forEach(function (key) {
  var val = o[key];
  ...
});

underscore is useful if you live in an ES3 world, but ES5 has everything you need, all underscore does is add bloat on top of it.

Answer 4

A couple more here

• https://github.com/ded/valentine
• http://sugarjs.com/

Answer 5

You may want to look into the following two libraries:

• wu.js
• functional

Answer 6

lowscore is intended to be a very lightweight underscore:

• you can require only the functions you need
• can reduce JS size by roughly 15k minified, or about 50k non-minified.