Run results for: native find vs lodash _.findIndex

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36

Browser: Chrome 105

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
_.findIndex	6176907.0 Ops/sec
my findIndex	9517658.0 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

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

Tests:

_.findIndex
_.findIndex(users,val=>val.active)
my findIndex
var is_array = function (value) {return value && typeof value === 'object' && typeof value.length === 'number' && typeof value.splice === 'function' && !(value.propertyIsEnumerable('length'));}; function findIndex(array,iteratee) { if(!is_array(array)) return -1; if(typeof iteratee==='function') return array.findIndex(iteratee) // The `_.property` iteratee shorthand. if(typeof iteratee=='string') return array.findIndex(val => _.get(val,iteratee)) // The `_.matchesProperty` iteratee shorthand. return array.findIndex(val=>_.get(val,iteratee[0])===iteratee[1]) } findIndex(users,val=>val.active)