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Run results for:
Array.includes vs String.includes vs Object Hashmap vs Set vs Array.indexOf Large
Matching a string against more than one possibility.
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<iframe src="https://measurethat.net/Embed?id=603660" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36
Browser:
Chrome 135
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Array.includes
31130256.0 Ops/sec
String.includes
257082688.0 Ops/sec
Object Hash-map
66896252.0 Ops/sec
ES6 Set
268172288.0 Ops/sec
Array.indexOf
30618432.0 Ops/sec
Script Preparation code:
var testArray = ['foo', 'a','b', 'c','d','e','f','g','h','i','j', 'k', 'l','m','n' ,'bar','o', 'p', 'q', 'r', 's','t','u', 'v','w','x','y', 'z']; var testString = testArray.join(','); var objectHash = testArray.reduce((acc, key) => {acc[key] = true; return acc;},{}); var testSet = new Set(testArray);
Tests:
Array.includes
const testStrFirst = 'foo'; testArray.includes(testStrFirst); const testStrSecond = 'bar'; testArray.includes(testStrSecond); const testStrNotMatch = 'baz'; testArray.includes(testStrNotMatch);
String.includes
const testStrFirst = 'foo'; testString.includes(testStrFirst); const testStrSecond = 'bar'; testString.includes(testStrSecond); const testStrNotMatch = 'baz'; testString.includes(testStrNotMatch);
Object Hash-map
const testStrFirst = 'foo'; objectHash[testStrFirst]; const testStrSecond = 'bar'; objectHash[testStrSecond]; const testStrNotMatch = 'baz'; objectHash[testStrNotMatch];
ES6 Set
const testStrFirst = 'foo'; testSet.has(testStrFirst); const testStrSecond = 'bar'; testSet.has(testStrSecond); const testStrNotMatch = 'baz'; testSet.has(testStrNotMatch);
Array.indexOf
const testStrFirst = 'foo'; testArray.indexOf(testStrFirst); const testStrSecond = 'bar'; testArray.indexOf(testStrSecond); const testStrNotMatch = 'baz'; testArray.indexOf(testStrNotMatch);