Function findLastIndex

findLastIndex(array: any, predicate?: any, fromIndex?: number): number

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

Parameters

array: any
The array to inspect.
Optionalpredicate: any
The function invoked per iteration.
OptionalfromIndex: number
The index to search from.

Returns number

Returns the index of the found element, else -1.

Since

5.2.0

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