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Run results for:
Object.freeze vs Object.seal
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Embed Benchmark Result
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0
Browser:
Firefox 128
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
normal
389.3M/s
seal
388.1M/s
freeze
11.3M/s
View exact numbers
Test name
Executions per second
✓
normal
389,256,352 Ops/sec
seal
388,067,936 Ops/sec
freeze
11,251,452 Ops/sec
Script Preparation code:
var normal = { x: 0, y: 0 }; var freeze = Object.freeze({ x: 0, y: 0 }); var seal = Object.seal({ x: 0, y: 0 });
Tests:
normal
var t = normal.x; normal.x = normal.y; normal.y = t;
freeze
var t = freeze.x; freeze.x = freeze.y; freeze.y = t;
seal
var t = seal.x; seal.x = seal.y; seal.y = t;