_.find

_.find(collection, [predicate=_.identity], [fromIndex=0])

Iterates over elements of collection, returning the first element predicate returns truthy for. The predicate is invoked with three arguments: (value, index|key, collection).

Since

0.1.0

Arguments

  1. collection (Array|Object): The collection to inspect.
  2. [predicate=_.identity] (Function): The function invoked per iteration.
  3. [fromIndex=0] (number): The index to search from.

Returns

(*): Returns the matched element, else undefined.

Example

var users = [
  { 'user': 'barney',  'age': 36, 'active': true },

  { 'user': 'fred',    'age': 40, 'active': false },

  { 'user': 'pebbles', 'age': 1,  'active': true }
];
 
_.find(users, function(o) { return o.age < 40; });
// => object for 'barney'
 
// The `_.matches` iteratee shorthand.
_.find(users, { 'age': 1, 'active': true });
// => object for 'pebbles'
 
// The `_.matchesProperty` iteratee shorthand.
_.find(users, ['active', false]);
// => object for 'fred'
 
// The `_.property` iteratee shorthand.
_.find(users, 'active');
// => object for 'barney'
doc_Lodash
2016-11-27 16:36:49
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