4.17.11
3.10.1
2.4.2
1.3.1

_.partition(collection, [predicate=_.identity])

sourcenpm package

Creates an array of elements split into two groups, the first of which contains elements predicate returns truthy for, the second of which contains elements predicate returns falsey for. The predicate is invoked with one argument: (value).

Since

3.0.0

Arguments

argument
collection
[predicate=_.identity]
type
(Array|Object)
Function
description
The collection to iterate over.
The function invoked per iteration.

Returns

(array)

Example

var users = [
  {
    user: "barney",
    age: 36,
    active: false,
  },
  {
    user: "fred",
    age: 40,
    active: true,
  },
  {
    user: "pebbles",
    age: 1,
    active: false,
  },
];

_.partition(users, function (o) {
  return o.active;
});
// => objects for [['fred'], ['barney', 'pebbles']]

// The `_.matches` iteratee shorthand.
_.partition(users, {
  age: 1,
  active: false,
});
// => objects for [['pebbles'], ['barney', 'fred']]

// The `_.matchesProperty` iteratee shorthand.
_.partition(users, ["active", false]);
// => objects for [['barney', 'pebbles'], ['fred']]

// The `_.property` iteratee shorthand.
_.partition(users, "active");
// => objects for [['fred'], ['barney', 'pebbles']]

var users = [
  { user: "barney", age: 36, active: false },
  { user: "fred", age: 40, active: true },
  { user: "pebbles", age: 1, active: false },
];

_.partition(users, function (o) {
  return o.active;
});
// => objects for [['fred'], ['barney', 'pebbles']]

// The `_.matches` iteratee shorthand.
_.partition(users, { age: 1, active: false });
// => objects for [['pebbles'], ['barney', 'fred']]

// The `_.matchesProperty` iteratee shorthand.
_.partition(users, ["active", false]);
// => objects for [['barney', 'pebbles'], ['fred']]

// The `_.property` iteratee shorthand.
_.partition(users, "active");
// => objects for [['fred'], ['barney', 'pebbles']]