Function findIndex

This method is like find except that it returns the index of the first element predicate returns truthy for instead of the element itself.

Returns

The index of the found value, else -1

Example

let users = [
 { 'user': 'barney',  'active': false },
 { 'user': 'fred',    'active': false },
 { 'user': 'pebbles', 'active': true }
]

findIndex(users, o => o.user == 'barney')
// 0

// The `shape` iteratee shorthand.
findIndex(users, { 'user': 'fred', 'active': false })
// 1

// The `property` iteratee shorthand.
findIndex(users, 'active')
// 2

See

• indexOf
• findLastIndex