Run results for: Performance Test: substring vs subsstr vs slice

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0

Browser: Firefox 126

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

substring

1172.2M/s

slice

1074.0M/s

substr

1037.5M/s

View exact numbers

Test name	Executions per second
✓ substring	1,172,214,016 Ops/sec
slice	1,074,014,080 Ops/sec
substr	1,037,505,088 Ops/sec

Script Preparation code:

var string = "I am the god of hellfire, and I ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffbring you..."

Tests:

slice
var substring = string.slice(17, 25);
substring
var substring = string.substring(17, 25);
substr
var substring = string.substr(17, 25);