Run results for: indexOf vs search 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36

Browser: Chrome 116

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
indexOf	533140.0 Ops/sec
search	88542.6 Ops/sec
search (u)	70815.1 Ops/sec
exec	74843.1 Ops/sec
exec (U)	72028.1 Ops/sec

Script Preparation code:

var NEWLINE = /\x0d\x0a|[\x0a\x0d\u2028\u2029]/;
var NEWLINE_U = /\x0d\x0a|[\x0a\x0d\u2028\u2029]/u;
var str = 'foobarbaz!'.repeat(1000) + '\n';
window.result = 0;

Tests:

indexOf
result += str.indexOf('\n');
search
result += str.search(NEWLINE);
search (u)
result += str.search(NEWLINE_U);
exec
const match = NEWLINE.exec(str); if (match) result += match.index;
exec (U)
const match = NEWLINE_U.exec(str); if (match) result += match.index;

Run results for: indexOf vs search 2

String searching

indexOf

search

search (u)

exec

exec (U)