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Dict vs. Map vs. Array ( complete iteration 2)
(version: 1)
Large dictionary - how worse is it from array with direct reference? And how does Map perform?
Comparing performance of:
Dictionary vs Array vs Map vs Array Iterator
Created:
one year ago
by:
Guest
Go to the latest result
Script Preparation code:
var dict= {} for (var i=0; i<50000; i++) { dict['abc_'+i] = i; } var map= new Map() for (var i=0; i<50000; i++) { map.set('abc_'+i, i); } var arr = [] for (var i=0; i<50000; i++) { arr.push(i); }
Tests:
Dictionary
let c = 0 for (let key in dict) { c += dict[key]}
Array
let c = 0 for (i=0; i<50000; i+=1) { c += arr[i]}
Map
let c = 0 for (let [key, entry] of map) { c += map.get(key)}
Array Iterator
let c = 0 for (let entry of arr) { c += entry}
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
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Test case name
Result
Dictionary
Array
Map
Array Iterator
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
Browser/OS:
Firefox 134 on Windows
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=583747" width="100%" height="500px"></iframe>
Array Iterator
5K/s
Array
4K/s
Dictionary
903/s
Map
636/s
View exact numbers
Test name
Executions per second
✓
Array Iterator
4,792 Ops/sec
Array
3,750 Ops/sec
Dictionary
903 Ops/sec
Map
636 Ops/sec
Related benchmarks
Array constructor vs literal performance - 1000 items
Dict vs. Map vs. Array
Dict vs. Map vs. Array (all entries)
Dict vs. Map vs. Array ( complete iteration)
Dict vs. Map vs. Array ( complete iteration 3)
Dict vs. Map vs. Array ( complete iteration Ultimate Collection)
Dict vs. Map vs. Array ( complete iteration 4)
Comments
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