299
votes

I once used Lodash _.pluck...I loved pluck...

Realizing Lodash no longer supports pluck (as of Lodash 4.x), I'm struggling to remember what to use instead...

I went to the docs, hit cmd-f, typed 'pluck', but my poor abandoned friend is not even given a proper mention...not even a 'has been replaced by'...

Can someone please remind me what I'm supposed to use instead?

5

5 Answers

457
votes

Ah-ha! The Lodash Changelog says it all...

"Removed _.pluck in favor of _.map with iteratee shorthand"

var objects = [{ 'a': 1 }, { 'a': 2 }];

// in 3.10.1
_.pluck(objects, 'a'); // → [1, 2]
_.map(objects, 'a'); // → [1, 2]

// in 4.0.0
_.map(objects, 'a'); // → [1, 2]
81
votes

There isn't a need for _.map or _.pluck since ES6 has taken off.

Here's an alternative using ES6 JavaScript:

clips.map(clip => clip.id)

19
votes

Use _.map instead of _.pluck. In the latest version the _.pluck has been removed.

3
votes

If you really want _.pluck support back, you can use a mixin:

const _ = require("lodash")

_.mixin({
    pluck: _.map
})

Because map now supports a string (the "iterator") as an argument instead of a function.

-2
votes

Or try pure ES6 nonlodash method like this

const reducer = (array, object) => {
  array.push(object.a)
  return array
}

var objects = [{ 'a': 1 }, { 'a': 2 }];
objects.reduce(reducer, [])