Run results for: Array vs Set (Large)

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.113 Safari/537.36

Browser: Chrome 81

Operating system: Windows 7

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Array	49.7 Ops/sec
Set	2778.6 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 directAddresses = [];
for(var i=1; i< 100; i++) {
  directAddresses.push(`${i}deliverymanage@direct.com`);
}

var mySetDomains = new Set();
for(var i=1; i< 10000; i++) {
  mySetDomains.add(`${i}direct.com`);
}

var usingArrayDomains = [];
for(var j=1; j< 10000; j++) {
  usingArrayDomains.push(`${j}direct.com`);
}

Tests:

Array
_.map(directAddresses, (da) => { const domain = da.split('@')[1]; _.includes(usingArrayDomains, domain); });
Set
_.map(directAddresses, (da) => { const domain = da.split('@')[1]; mySetDomains.has(domain); });