Meteor and lodash

captainn · March 7, 2018, 6:35pm

Hey, does anyone know how well Meteor works with lodash, specifically with regards to only including the specific components we use?

For most array operations we’re using the build in array methods, and polyfilling for older browsers. But certain functions like _.sortBy don’t have an ecmascript analog, and I’d like to be able to use them. But I don’t want to bundle in the entire lodash payload.

Any insight is appreciated!

copleykj · March 7, 2018, 9:06pm

I’m believe you can use full paths and Meteor will only include the code for that specific function. I’d give it a test for sure. If not you can install and use only the per method packages that you need and this will guarantee only necessary code is included

maxhodges · March 8, 2018, 5:15am

we use lodash liberally in a two small and one medium size Meteor project. I’m not aware of any issues.
size

gist.github.com

https://gist.github.com/alekseykulikov/5f4a6ca69e7b4ebed726

Readme.md

In reply to Jeremy's tweet, that underscore is 3x smaller (simpler?) than Lodash! https://twitter.com/jashkenas/status/568564455937839106

Apparently, it's only true if you use `<script>` tag, 
but if you use lodash's module feature and build your project with browserify(or webpack) you get different numbers.
In simple cases underscore can be 4-6 times bigger.

```
15020 bundle-lodash-without.js
 4820 bundle-lodash-without.min.js
 1647 bundle-lodash-without.min.js.gz

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lodash-without.js

var without = require('lodash.without');
console.log(without([1, 2, 3, 4], 3));

lodash.js

var without = require('lodash/array/without');
console.log(without([1, 2, 3, 4], 3));

There are more than three files. show original

rikyperdana · March 8, 2018, 7:12pm

I use stevezhu:lodash package from atmosphere in all my projects. Yet I didn’t found any issues related to load speed til now

captainn · March 9, 2018, 3:33am

We have settled on using the build in ecmascript most of the the time (with Meteor’s new modern bundles, they will include no overhead from polyfills!), so including the whole package would be overkill - but lodash does have some nice methods which have no analog in ecmascript, like _.sortBy. That’s a pretty convenient method.