Run results for: indexOf vs search 3

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser: Chrome 107

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
indexOf	2165978.2 Ops/sec
search	130389.3 Ops/sec
search (u)	130734.6 Ops/sec
exec	135923.6 Ops/sec
exec (U)	135931.3 Ops/sec
indexOf all	1242789.0 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);
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;
indexOf all
let index = str.indexOf('\n'); if (index === -1) index = str.indexOf('\r'); if (index === -1) index = str.indexOf('\u2028'); if (index === -1) index = str.indexOf('\u2029'); result += index;

Run results for: indexOf vs search 3

String searching

indexOf

search

search (u)

exec

exec (U)

indexOf all