prefer-filter.md

Prefer filter

When using _.forEach with a single if statement, you should probably use _.filter or _.some instead.

Rule Details

This rule takes one argument, maximum path length (default is 3).

The following patterns are considered warnings:

_(users).forEach(function(user) { 
  if (user.name.familyName) {
  // ...
  }
});

_(users).forEach(function(user) { 
  if (!user.active) {
  // ...
  }
});

_.forEach(users, function(user) { 
  if (user.name.givenName === 'Bob') {
  // ...
  }
});

The following patterns are not considered warnings:

var x = _.filter(users, function(user) {
  return !user.active && user.name.givenName === 'Bob'
});