import { findKey } from "https://deno.land/x/lodash_es@v0.0.2/mod.ts";
This method is like _.find except that it returns the key of the first
element predicate returns truthy for instead of the element itself.
Examples
var users = {
'barney': { 'age': 36, 'active': true },
'fred': { 'age': 40, 'active': false },
'pebbles': { 'age': 1, 'active': true }
};
var users = { 'barney': { 'age': 36, 'active': true }, 'fred': { 'age': 40, 'active': false }, 'pebbles': { 'age': 1, 'active': true } };
_.findKey(users, function(o) { return o.age < 40; }); // => 'barney' (iteration order is not guaranteed)
// The _.matches iteratee shorthand.
_.findKey(users, { 'age': 1, 'active': true });
// => 'pebbles'
// The _.matchesProperty iteratee shorthand.
_.findKey(users, ['active', false]);
// => 'fred'
// The _.property iteratee shorthand.
_.findKey(users, 'active');
// => 'barney'