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Run results for:
undefined comparison
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Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Browser:
Chrome 123
Operating system:
Linux
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
undefined
915.8 Ops/sec
void 0
173694.4 Ops/sec
length
229543.7 Ops/sec
Tests:
undefined
const test = 'abcdefgh' for(let i=10000; i>0; i--) { if (test[i] === undefined) { } }
void 0
const test = 'abcdefgh' for(let i=10000; i>0; i--) { if (test[i] === void 0) { } }
length
const test = 'abcdefgh' for(let i=10000; i>0; i--) { if (i === test.length) { } }