Returns the key of the matched element,
else undefined.
var users = {
'barney': { 'age': 36, 'active': true },
'fred': { 'age': 40, 'active': false },
'pebbles': { 'age': 1, 'active': true }
};
findLastKey(users, function(o) { return o.age < 40; });
// => returns 'pebbles' assuming `findKey` returns 'barney'
// The `matches` iteratee shorthand.
findLastKey(users, { 'age': 36, 'active': true });
// => 'barney'
// The `matchesProperty` iteratee shorthand.
findLastKey(users, ['active', false]);
// => 'fred'
// The `property` iteratee shorthand.
findLastKey(users, 'active');
// => 'pebbles'
This method is like findKey except that it iterates over elements of
a collection in the opposite order.
The object to inspect.
Optionalpredicate: any[]The function invoked per iteration.
Returns the key of the matched element,
else undefined.
var users = {
'barney': { 'age': 36, 'active': true },
'fred': { 'age': 40, 'active': false },
'pebbles': { 'age': 1, 'active': true }
};
findLastKey(users, function(o) { return o.age < 40; });
// => returns 'pebbles' assuming `findKey` returns 'barney'
// The `matches` iteratee shorthand.
findLastKey(users, { 'age': 36, 'active': true });
// => 'barney'
// The `matchesProperty` iteratee shorthand.
findLastKey(users, ['active', false]);
// => 'fred'
// The `property` iteratee shorthand.
findLastKey(users, 'active');
// => 'pebbles'
This method is like findKey except that it iterates over elements of
a collection in the opposite order.
The object to inspect.
Optionalpredicate: stringThe function invoked per iteration.
Returns the key of the matched element,
else undefined.
var users = {
'barney': { 'age': 36, 'active': true },
'fred': { 'age': 40, 'active': false },
'pebbles': { 'age': 1, 'active': true }
};
findLastKey(users, function(o) { return o.age < 40; });
// => returns 'pebbles' assuming `findKey` returns 'barney'
// The `matches` iteratee shorthand.
findLastKey(users, { 'age': 36, 'active': true });
// => 'barney'
// The `matchesProperty` iteratee shorthand.
findLastKey(users, ['active', false]);
// => 'fred'
// The `property` iteratee shorthand.
findLastKey(users, 'active');
// => 'pebbles'
This method is like
findKeyexcept that it iterates over elements of a collection in the opposite order.