prefer-invoke-map.md

Prefer invoke

When using _.map with a method call of each item in the collection, it could improve readability by switching to _.invokeMap

Rule Details

This rule takes no arguments.

The following patterns are considered warnings:

_.map(arr, function(x) { return x.f(a, b)});

_(arr).filter(f).map(function(x) { return x.f()}).value();

The following patterns are not considered warnings:

var x = _.invokeMap(arr, 'f');

var x = _.invokeMap(collection, 'split', ':'); 

When Not To Use It

This rule is only relevant for Lodash 4. If you don't use Lodash 4, you should not use this rule.

If you do not want to enforce using _.invokeMap, and prefer using _.map with a method call instead.