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Map vs Object read performance for a 1000 key lookup - fixed
(version: 0)
Lookup of map vs object
Comparing performance of:
map-insert vs obj insert vs Map lookup vs Obj lookup
Created:
one year ago
by:
Guest
Go to the latest result
Script Preparation code:
var map = new Map(); var obj = {}; map.set('a', 5); obj['a'] = 5; var numberOfEntries = 100000 let i = 0; var count = 1000; var a;
Tests:
map-insert
for (let j = 0; j < numberOfEntries; j++){ const key = `a-${j}`; const value = j; map.set(key,value) }
obj insert
for (let j = 0; j < numberOfEntries; j++){ const key = `a-${j}`; const value = j; obj[key] = value; }
Map lookup
for (i = 0; i < count; i++) { const key = `a-${i}`; a = map.get(key); }
Obj lookup
for (i = 0; i < count; i++) { const key = `a-${i}`; a = obj[key]; }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
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Test case name
Result
map-insert
obj insert
Map lookup
Obj lookup
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
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/OS:
Chrome 130 on Mac OS X 10.15.7
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=565283" width="100%" height="500px"></iframe>
Obj lookup
4K/s
Map lookup
4K/s
map-insert
48/s
obj insert
43/s
View exact numbers
Test name
Executions per second
✓
Obj lookup
4,098 Ops/sec
Map lookup
3,569 Ops/sec
map-insert
48 Ops/sec
obj insert
43 Ops/sec
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