Run results for: testing flatMap, filter and for..of loop

Test name	Executions per second
✓ tetsing with for..of loop	21,990,656 Ops/sec
Test reduce	11,220,439 Ops/sec
testing flatMap and filter 2	7,525,118 Ops/sec
test flatMap and filter	7,408,630 Ops/sec

Script Preparation code:

var customArray1 = [
  {
    advertiser_id: "1",
    name: "Ricardo",
    geolocation: "EC",
    visits_per_month: "6",
    daily_goal: "6",
    url: "http://ricardos.com",
    deleted: "1",
  },
  {
    advertiser_id: "1",
    name: "Leonel",
    geolocation: "CO",
    visits_per_month: "5",
    daily_goal: "5",
    url: "http://leonels.com",
    deleted: "0",
  },
];

var customArray2 = [
  {
    advertiser_id: 1,
    geolocation: "EC",
    visits_per_month: 6,
    daily_goal: 6,
    url: "http://ricardo.com",
    id: 1,
  },
  {
    advertiser_id: 1,
    geolocation: "CO",
    visits_per_month: 5,
    daily_goal: 5,
    url: "http://leonel.com",
    id: 2,
  },
];

Tests:

Test reduce
customArray1.reduce((acc, item1) => { customArray2.forEach((item2) => { if ( String(item1['advertiser_id']) == String(item2['advertiser_id']) && item1['geolocation'] == item2['geolocation'] && item1['deleted'] !== '1' && (item1['visits_per_month'] !== String(item2['visits_per_month']) || item1['daily_goal'] !== String(item2['daily_goal']) || item1['url'] !== item2['url']) ) { acc.push(item1); } }); return acc; }, []);
test flatMap and filter
customArray2.flatMap((item1) => customArray1.filter( (item2) => String(item1['advertiser_id']) === item2['advertiser_id'] && item1['geolocation'] == item2['geolocation'] && (item1['visits_per_month'] !== String(item2['visits_per_month']) || item1['daily_goal'] !== String(item2['daily_goal']) || item1['url'] !== item2['url']) ) );
tetsing with for..of loop
let result = []; for (let item1 of customArray1) { if (item1.deleted !== '1') { for (let item2 of customArray2) { if ( String(item1['advertiser_id']) == String(item2['advertiser_id']) && item1['geolocation'] == item2['geolocation'] && (item1['visits_per_month'] !== String(item2['visits_per_month']) || item1['daily_goal'] !== String(item2['daily_goal']) || item1['url'] !== item2['url']) ) { result.push(item1); } } } }
testing flatMap and filter 2
customArray1.flatMap((item1) => customArray2.filter( (item2) => String(item1['advertiser_id']) == String(item2['advertiser_id']) && item1['geolocation'] == item2['geolocation'] && item1['deleted'] !== '1' && (item1['visits_per_month'] !== String(item2['visits_per_month']) || item1['daily_goal'] !== String(item2['daily_goal']) || item1['url'] !== item2['url']) ) );

Run results for: testing flatMap, filter and for..of loop

Test reduce

test flatMap and filter

tetsing with for..of loop

testing flatMap and filter 2