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Run results for:
ArrayBuffer encoding / decoding methods
Array.from() vs TextDecoder() and new Uint8Array() vs TextEncoder()
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Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 17
Operating system:
iOS 17.2.1
Device Platform:
Mobile
Date tested:
2 years ago
Test name
Executions per second
Array.from()
65378.7 Ops/sec
new TextDecoder()
536248.9 Ops/sec
new Uint8Array()
5279780.5 Ops/sec
new TextEncoder()
356698.7 Ops/sec
Script Preparation code:
var randomArray = Array.from({ length: 1000 }, () => Math.floor(Math.random() * 256)) var randomArrayBuffer = new Uint8Array(randomArray) var randomString = new TextDecoder().decode(randomArrayBuffer)
Tests:
Array.from()
Array.from(randomArrayBuffer)
new TextDecoder()
new TextDecoder().decode(randomArrayBuffer)
new Uint8Array()
new Uint8Array(randomArray)
new TextEncoder()
new TextEncoder().encode(randomString)