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Run results for:
array for vs some (test)
Compare the new ES6 spread operator with the traditional concat() method
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Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Mobile Safari/537.36
Browser:
Chrome Mobile 119
Operating system:
Android
Device Platform:
Mobile
Date tested:
2 years ago
Test name
Executions per second
array for
112880944.0 Ops/sec
array some
154016512.0 Ops/sec
HTML Preparation code:
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.core.js"></script>
Tests:
array for
var a = ['hello', 'a', 'bc']; function find(target, arr) { for (let i = 0; i < arr.length; i++) { if (target === arr[i]) return true; } return false; } var b = find('bc', a);
array some
var a = ['hello', 'a', 'bc']; var b = a.some(item => item === 'bc');