Benchmark: Access Object, Map, Array, Set with n items #2

Script Preparation code:

var length = 10000;
var key = '5000';
var obj = Array.from({length}).reduce((obj,_,index) => {obj[index.toString()] = index; return obj}, {});
var map = new Map(Array.from({length}).map((_,index) => [index.toString(), index]));

var arr = Array.from({length}).map((_,index) => index.toString());
var set = new Set(Array.from({length}).map((_,index) => index.toString()));

Tests:

Get from Object
var value = obj[key];
Get from Map
var value = map.get(key);
Has key in Map
var has = map.has(key);
Has key in Array OLD
var has = arr.indexOf(key) > -1;
Has key in Array NEW
var has = arr.includes(key);
Has key in Set
var has = set.has(key);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Get from Object
Get from Map
Has key in Map
Has key in Array OLD
Has key in Array NEW
Has key in Set

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0

Browser/OS: Firefox 86 on Windows 8.1

View result in a separate tab

Test name	Executions per second
Get from Object	142965500.0 Ops/sec
Get from Map	4172567.0 Ops/sec
Has key in Map	2195928.0 Ops/sec
Has key in Array OLD	1303.3 Ops/sec
Has key in Array NEW	1448.0 Ops/sec
Has key in Set	5649639.0 Ops/sec

Access Object, Map, Array, Set with n items #2 (version: 0)

Comparing performance of: Get from Object vs Get from Map vs Has key in Map vs Has key in Array OLD vs Has key in Array NEW vs Has key in Set

Created: 3 years ago by: Guest

Jump to the latest result

Get from Object

Get from Map

Has key in Map

Has key in Array OLD

Has key in Array NEW

Has key in Set

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A