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Run results for:
Which equals operator (== vs ===) is faster?
Is there a performance benefit to replacing == with ===?
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<iframe src="https://measurethat.net/Embed?id=586661" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6.1 Safari/605.1.15
Browser:
Safari 17
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
test equality
19697108.0 Ops/sec
test strict equality
482406592.0 Ops/sec
Tests:
test equality
var n = 0; if (n == 0) { // same type } if (n == '0') { // different type } if (n == {}) { // totally different }
test strict equality
var n = 0; if (n === 0) { // same type } if (n === '0') { // different type } if (n === {}) { // totally different }