Benchmark: Stor info in Array vs Object

Script Preparation code:

function makeid(length) {
    var result           = '';
    var characters       = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
    var charactersLength = characters.length;
    for ( var i = 0; i < length; i++ ) {
      result += characters.charAt(Math.floor(Math.random() * 
 charactersLength));
   }
   return result;
}


var values = Array.from({length: 1000}).map(()=> makeid(10));

Tests:

Array index
let a = []; for(let i = 0; i < values.length; i++) a[i] = values[i];
Object
let b = {}; for(let i = 0; i < values.length; i++) b[values[i]] = values[i];
Array.push
let c = []; for(let i = 0; i < values.length; i++) c.push(values[i]);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array index
Object
Array.push

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36

Browser/OS: Chrome 89 on Linux

View result in a separate tab

Test name	Executions per second
Array index	6392.2 Ops/sec
Object	3136.9 Ops/sec
Array.push	5795.9 Ops/sec

Stor info in Array vs Object (version: 0)

Comparing performance of: Array index vs Object vs Array.push

Created: 2 years ago by: Guest

Jump to the latest result

Array index

Object

Array.push

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A