Run results for: indexOf vs includes in strings

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

indexOf > -1

1.5M/s

indexOf !== -1

1.5M/s

!~indexOf

1.5M/s

includes

1.5M/s

test

1.1M/s

match

1.1M/s

View exact numbers

Test name	Executions per second
✓ indexOf > -1	1,505,453 Ops/sec
indexOf !== -1	1,503,584 Ops/sec
!~indexOf	1,499,284 Ops/sec
includes	1,498,346 Ops/sec
test	1,142,791 Ops/sec
match	1,057,816 Ops/sec

Script Preparation code:

var long = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.';
var short = 'file.ext';

var s1 = 'tempor';
var s2 = '.ext';

var re1 = /tempor/;
var re2 = /\.ext/;

Tests:

includes
long.includes(s1); long.includes(s2); short.includes(s1); short.includes(s2);
!~indexOf
!~long.indexOf(s1); !~long.indexOf(s2); !~short.indexOf(s1); !~short.indexOf(s2);
indexOf > -1
long.indexOf(s1) > -1; long.indexOf(s2) > -1; short.indexOf(s1) > -1; short.indexOf(s2) > -1;
indexOf !== -1
long.indexOf(s1) !== -1; long.indexOf(s2) !== -1; short.indexOf(s1) !== -1; short.indexOf(s2) !== -1;
test
re1.test(long); re2.test(long); re1.test(short); re2.test(short);
match
long.match(re1) !== null; long.match(re2) !== null; short.match(re1) !== null; short.match(re2) !== null;