Benchmark: set.has vs. Object key lookup for real

Script Preparation code:

var a = new Set([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
var b = {1: true, 2: true, 3: true, 4: true, 5: true, 6: true, 7: true, 8: true, 9: true, 10: true}

Tests:

set.has
return a.has(9)
key lookup
return !!b['9']

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
set.has
key lookup

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/118.0

Browser/OS: Firefox 118 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
set.has	507369200.0 Ops/sec
key lookup	535082800.0 Ops/sec

set.has vs. Object key lookup for real (version: 0)

Comparing performance of: set.has vs key lookup

Created: one year ago by: Guest

Jump to the latest result

set.has

key lookup

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A