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Run results for:
JS Map foreach vs for of
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Browser:
Chrome 130
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
foreach
70802.3 Ops/sec
for... of
72288.9 Ops/sec
Script Preparation code:
var testMap = new Map(); for(let i=0; i<1000; i++) { testMap.set(`key${i}`,`value${i}`); }
Tests:
foreach
testMap.forEach((v,k)=>{ `key: ${k}, value: ${v}` })
for... of
for(let [k,v] of testMap) { `key: ${k}, value: ${v}` }