Benchmark: Array includes vs string indexOf

Script Preparation code:

var o = {'ff1234567890121':0, 'ff1234567890122':1, 'ff1234567890123':2, 'ff1234567890124':3, 'ff1234567890125':4};
var a = ['ff1234567890121', 'ff1234567890122', 'ff1234567890123', 'ff1234567890124', 'ff1234567890125'];
var s = '-ff1234567890121--ff1234567890122--ff1234567890123--ff1234567890124--ff1234567890125-';
var t = 'ff1234567890124';

Tests:

Array includes
var i = a.includes(t);
String indexOf
var i = s.indexOf('-' + t + '-');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array includes
String indexOf

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36 Edg/107.0.1418.62

Browser/OS: Chrome 107 on Windows

View result in a separate tab

Test name	Executions per second
Array includes	3311553.0 Ops/sec
String indexOf	3318943.0 Ops/sec

Array includes vs string indexOf (version: 0)

Comparing performance of: Array includes vs String indexOf

Created: one year ago by: Guest

Jump to the latest result

Array includes

String indexOf

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A