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Run results for:
normal vs Object.freeze vs Object.seal performance
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:149.0) Gecko/20100101 Firefox/149.0
Browser:
Firefox 149
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
3 months ago
normal
1570.8M/s
freeze
16.2M/s
seal
14.9M/s
View exact numbers
Test name
Executions per second
✓
normal
1,570,829,184 Ops/sec
freeze
16,191,517 Ops/sec
seal
14,877,647 Ops/sec
Tests:
normal
var normal = { x: 0, y: 0 };
freeze
var freeze = Object.freeze({ x: 0, y: 0 });
seal
var seal = Object.seal({ x: 0, y: 0 });