Run results for: Sparse Array Vs. Object, Map, Set, Number Indexes 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36

Browser: Chrome 113

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 11 months ago

Test name	Executions per second
Object	2669.0 Ops/sec
Array	2659.1 Ops/sec
Set Length Array	3956.0 Ops/sec
TypedArray	3803.2 Ops/sec
map	3364.9 Ops/sec
set	3646.3 Ops/sec

Script Preparation code:

var iterations =100000;
var step = 100;
var obj = {};
var arr = [];
var map = new Map();
var set = new Set();
var setLengthArr = new Array(iterations);
var typedArray = new Uint32Array(iterations);

Tests:

Object
for(let i=0;i<iterations;i+=step){ obj[i]= i; obj[i+1]=obj[i]+1; }
Array
for(let i=0;i<iterations;i+=step){ arr[i]=i; arr[i+1]= arr[i]+1; }
Set Length Array
for(let i=0;i<iterations;i+=step){ setLengthArr[i]=i; setLengthArr[i+1] = setLengthArr[i]+1; }
TypedArray
for(let i=0;i<iterations;i+=step){ typedArray[i]=i; typedArray[i+1]= typedArray[i]+1; }
map
for(let i=0;i<iterations;i+=step){ map.set(i,i); map.set(i+1,map.get(i)+1) }
set
for(let i=0;i<iterations;i+=step){ set.add(i); set.add(set.has(i) && i) }

Run results for: Sparse Array Vs. Object, Map, Set, Number Indexes 2

Object

Array

Set Length Array

TypedArray

map

set