import { findIndex } from "https://deno.land/x/lodash_es@v0.0.2/mod.ts";
This method is like _.find except that it returns the index of the first
element predicate returns truthy for instead of the element itself.
Examples
var users = [
{ 'user': 'barney', 'active': false },
{ 'user': 'fred', 'active': false },
{ 'user': 'pebbles', 'active': true }
];
var users = [ { 'user': 'barney', 'active': false }, { 'user': 'fred', 'active': false }, { 'user': 'pebbles', 'active': true } ];
_.findIndex(users, function(o) { return o.user == 'barney'; }); // => 0
// The _.matches iteratee shorthand.
_.findIndex(users, { 'user': 'fred', 'active': false });
// => 1
// The _.matchesProperty iteratee shorthand.
_.findIndex(users, ['active', false]);
// => 0
// The _.property iteratee shorthand.
_.findIndex(users, 'active');
// => 2