.findLastIndex(array, [predicate=.identity], [fromIndex=array.length-1])

sourcenpm package

This method is like _.findIndex except that it iterates over elements of collection from right to left.

Since

2.0.0

Arguments

• array (Array): The array to inspect.
• [predicate=.identity] (Function)_: The function invoked per iteration.
• [fromIndex=array.length-1] (number): The index to search from.

Returns

(number): Returns the index of the found element, else -1.

Example

var users = [
  { 'user': 'barney',  'active': true },
  { 'user': 'fred',    'active': false },
  { 'user': 'pebbles', 'active': false }
];
 
_.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
// => 2
 
// The `_.matches` iteratee shorthand.
_.findLastIndex(users, { 'user': 'barney', 'active': true });
// => 0
 
// The `_.matchesProperty` iteratee shorthand.
_.findLastIndex(users, ['active', false]);
// => 2
 
// The `_.property` iteratee shorthand.
_.findLastIndex(users, 'active');
// => 0