Run results for: classList.contains vs. hasAttribute v2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

hasAttribute attr2_cls2 last

70.0M/s

classList attr20_cls20 first

38.0M/s

classList attr2_cls2 last

37.8M/s

classList attr5_cls5 first

37.8M/s

classList attr10_cls10 first

37.8M/s

classList attr7_cls7 first

37.7M/s

classList attr8_cls8 first

37.7M/s

classList attr6_cls6 first

37.7M/s

classList attr18_cls18 first

37.5M/s

classList attr11_cls11 first

37.5M/s

classList attr9_cls9 first

37.4M/s

classList attr19_cls19 first

37.4M/s

classList attr13_cls13 first

37.4M/s

classList attr14_cls14 first

37.3M/s

classList attr15_cls15 first

37.3M/s

classList attr17_cls17 first

37.3M/s

classList attr16_cls16 first

37.2M/s

classList attr3_cls3 first

37.1M/s

classList attr4_cls4 first

37.0M/s

hasAttribute attr6_cls6 first

36.6M/s

classList attr2_cls2 first

36.4M/s

hasAttribute attr4_cls4 last

36.3M/s

classList attr12_cls12 first

36.2M/s

hasAttribute attr3_cls3 last

36.2M/s

hasAttribute attr19_cls19 first

36.1M/s

hasAttribute attr20_cls20 first

36.0M/s

hasAttribute attr8_cls8 first

36.0M/s

hasAttribute attr3_cls3 first

36.0M/s

hasAttribute attr18_cls18 first

36.0M/s

hasAttribute attr10_cls10 first

36.0M/s

hasAttribute attr16_cls16 first

36.0M/s

hasAttribute attr17_cls17 first

35.9M/s

hasAttribute attr7_cls7 first

35.9M/s

hasAttribute attr9_cls9 first

35.8M/s

hasAttribute attr6_cls6 last

35.8M/s

hasAttribute attr5_cls5 first

35.8M/s

hasAttribute attr13_cls13 first

35.8M/s

hasAttribute attr11_cls11 first

35.8M/s

hasAttribute attr15_cls15 first

35.7M/s

hasAttribute attr4_cls4 first

35.7M/s

hasAttribute attr12_cls12 first

35.6M/s

hasAttribute attr14_cls14 first

35.6M/s

hasAttribute attr2_cls2 first

35.5M/s

hasAttribute attr9_cls9 last

35.4M/s

hasAttribute attr11_cls11 last

35.3M/s

hasAttribute attr13_cls13 last

34.7M/s

hasAttribute attr18_cls18 last

33.9M/s

hasAttribute attr19_cls19 last

33.5M/s

hasAttribute attr20_cls20 last

32.9M/s

classList attr3_cls3 last

31.8M/s

classList attr4_cls4 last

31.7M/s

classList attr6_cls6 last

31.3M/s

classList attr9_cls9 last

31.0M/s

classList attr11_cls11 last

30.6M/s

classList attr13_cls13 last

29.8M/s

classList attr18_cls18 last

29.5M/s

classList attr20_cls20 last

28.1M/s

classList attr19_cls19 last

27.9M/s

hasAttribute attr7_cls7 last

27.9M/s

hasAttribute attr12_cls12 last

27.9M/s

hasAttribute attr10_cls10 last

27.9M/s

hasAttribute attr5_cls5 last

27.8M/s

hasAttribute attr8_cls8 last

27.7M/s

hasAttribute attr16_cls16 last

27.4M/s

hasAttribute attr17_cls17 last

27.4M/s

hasAttribute attr14_cls14 last

26.8M/s

hasAttribute attr15_cls15 last

26.5M/s

classList attr5_cls5 last

26.1M/s

classList attr12_cls12 last

25.9M/s

classList attr10_cls10 last

25.8M/s

classList attr7_cls7 last

25.4M/s

classList attr14_cls14 last

25.4M/s

classList attr16_cls16 last

25.4M/s

classList attr15_cls15 last

25.3M/s

classList attr17_cls17 last

25.2M/s

classList attr8_cls8 last

24.1M/s

View exact numbers

Test name	Executions per second
✓ hasAttribute attr2_cls2 last	69,978,720 Ops/sec
classList attr20_cls20 first	37,955,464 Ops/sec
classList attr2_cls2 last	37,834,204 Ops/sec
classList attr5_cls5 first	37,813,688 Ops/sec
classList attr10_cls10 first	37,808,820 Ops/sec
classList attr7_cls7 first	37,699,080 Ops/sec
classList attr8_cls8 first	37,669,864 Ops/sec
classList attr6_cls6 first	37,652,084 Ops/sec
classList attr18_cls18 first	37,543,512 Ops/sec
classList attr11_cls11 first	37,475,424 Ops/sec
classList attr9_cls9 first	37,432,036 Ops/sec
classList attr19_cls19 first	37,415,608 Ops/sec
classList attr13_cls13 first	37,367,908 Ops/sec
classList attr14_cls14 first	37,292,844 Ops/sec
classList attr15_cls15 first	37,291,260 Ops/sec
classList attr17_cls17 first	37,290,360 Ops/sec
classList attr16_cls16 first	37,218,912 Ops/sec
classList attr3_cls3 first	37,086,264 Ops/sec
classList attr4_cls4 first	37,027,956 Ops/sec
hasAttribute attr6_cls6 first	36,646,864 Ops/sec
classList attr2_cls2 first	36,445,720 Ops/sec
hasAttribute attr4_cls4 last	36,324,152 Ops/sec
classList attr12_cls12 first	36,246,516 Ops/sec
hasAttribute attr3_cls3 last	36,205,260 Ops/sec
hasAttribute attr19_cls19 first	36,072,772 Ops/sec
hasAttribute attr20_cls20 first	36,044,884 Ops/sec
hasAttribute attr8_cls8 first	36,037,212 Ops/sec
hasAttribute attr3_cls3 first	36,003,444 Ops/sec
hasAttribute attr18_cls18 first	35,971,896 Ops/sec
hasAttribute attr10_cls10 first	35,969,960 Ops/sec
hasAttribute attr16_cls16 first	35,952,672 Ops/sec
hasAttribute attr17_cls17 first	35,943,220 Ops/sec
hasAttribute attr7_cls7 first	35,881,300 Ops/sec
hasAttribute attr9_cls9 first	35,827,128 Ops/sec
hasAttribute attr6_cls6 last	35,795,640 Ops/sec
hasAttribute attr5_cls5 first	35,787,524 Ops/sec
hasAttribute attr13_cls13 first	35,771,108 Ops/sec
hasAttribute attr11_cls11 first	35,758,604 Ops/sec
hasAttribute attr15_cls15 first	35,739,728 Ops/sec
hasAttribute attr4_cls4 first	35,703,776 Ops/sec
hasAttribute attr12_cls12 first	35,598,720 Ops/sec
hasAttribute attr14_cls14 first	35,596,368 Ops/sec
hasAttribute attr2_cls2 first	35,542,548 Ops/sec
hasAttribute attr9_cls9 last	35,405,540 Ops/sec
hasAttribute attr11_cls11 last	35,298,624 Ops/sec
hasAttribute attr13_cls13 last	34,731,308 Ops/sec
hasAttribute attr18_cls18 last	33,871,832 Ops/sec
hasAttribute attr19_cls19 last	33,510,838 Ops/sec
hasAttribute attr20_cls20 last	32,891,114 Ops/sec
classList attr3_cls3 last	31,756,776 Ops/sec
classList attr4_cls4 last	31,718,548 Ops/sec
classList attr6_cls6 last	31,322,912 Ops/sec
classList attr9_cls9 last	31,008,758 Ops/sec
classList attr11_cls11 last	30,613,394 Ops/sec
classList attr13_cls13 last	29,818,994 Ops/sec
classList attr18_cls18 last	29,506,828 Ops/sec
classList attr20_cls20 last	28,077,466 Ops/sec
classList attr19_cls19 last	27,925,926 Ops/sec
hasAttribute attr7_cls7 last	27,925,598 Ops/sec
hasAttribute attr12_cls12 last	27,894,538 Ops/sec
hasAttribute attr10_cls10 last	27,863,298 Ops/sec
hasAttribute attr5_cls5 last	27,750,808 Ops/sec
hasAttribute attr8_cls8 last	27,747,278 Ops/sec
hasAttribute attr16_cls16 last	27,401,652 Ops/sec
hasAttribute attr17_cls17 last	27,385,754 Ops/sec
hasAttribute attr14_cls14 last	26,755,502 Ops/sec
hasAttribute attr15_cls15 last	26,524,208 Ops/sec
classList attr5_cls5 last	26,105,566 Ops/sec
classList attr12_cls12 last	25,937,322 Ops/sec
classList attr10_cls10 last	25,830,404 Ops/sec
classList attr7_cls7 last	25,387,124 Ops/sec
classList attr14_cls14 last	25,363,096 Ops/sec
classList attr16_cls16 last	25,362,172 Ops/sec
classList attr15_cls15 last	25,346,686 Ops/sec
classList attr17_cls17 last	25,247,076 Ops/sec
classList attr8_cls8 last	24,074,662 Ops/sec

HTML Preparation code:

<div id="attr2_cls2" class="bar baz"></div>
<div id="attr3_cls3" class="bar baz a" a="a"></div>
<div id="attr4_cls4" class="bar baz a b" a="a" b="b"></div>
<div id="attr5_cls5" class="bar baz a b c" a="a" b="b" c="c"></div>
<div id="attr6_cls6" class="bar baz a b c d" a="a" b="b" c="c" d="d"></div>
<div id="attr7_cls7" class="bar baz a b c d e" a="a" b="b" c="c" d="d" e="e"></div>
<div id="attr8_cls8" class="bar baz a b c d e f" a="a" b="b" c="c" d="d" e="e" f="f"></div>
<div id="attr9_cls9" class="bar baz a b c d e f g" a="a" b="b" c="c" d="d" e="e" f="f" g="g"></div>
<div id="attr10_cls10" class="bar baz a b c d e f g h" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h"></div>
<div id="attr11_cls11" class="bar baz a b c d e f g h i" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i"></div>
<div id="attr12_cls12" class="bar baz a b c d e f g h i j" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i" j="j"></div>
<div id="attr13_cls13" class="bar baz a b c d e f g h i j k" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i" j="j" k="k"></div>
<div id="attr14_cls14" class="bar baz a b c d e f g h i j k l" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i" j="j" k="k" l="l"></div>
<div id="attr15_cls15" class="bar baz a b c d e f g h i j k l m" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i" j="j" k="k" l="l" m="m"></div>
<div id="attr16_cls16" class="bar baz a b c d e f g h i j k l m n" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i" j="j" k="k" l="l" m="m" n="n"></div>
<div id="attr17_cls17" class="bar baz a b c d e f g h i j k l m n o" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i" j="j" k="k" l="l" m="m" n="n" o="o"></div>
<div id="attr18_cls18" class="bar baz a b c d e f g h i j k l m n o p" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i" j="j" k="k" l="l" m="m" n="n" o="o" p="p"></div>
<div id="attr19_cls19" class="bar baz a b c d e f g h i j k l m n o p q" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i" j="j" k="k" l="l" m="m" n="n" o="o" p="p" q="q"></div>
<div id="attr20_cls20" class="bar baz a b c d e f g h i j k l m n o p q r" a="a" b="b" c="c" d="d" e="e" f="f" g="g" h="h" i="i" j="j" k="k" l="l" m="m" n="n" o="o" p="p" q="q" r="r"></div>

Script Preparation code:

const attr2_cls2 = document.getElementById("attr2_cls2");
const attr3_cls3 = document.getElementById("attr3_cls3");
const attr4_cls4 = document.getElementById("attr4_cls4");
const attr5_cls5 = document.getElementById("attr5_cls5");
const attr6_cls6 = document.getElementById("attr6_cls6");
const attr7_cls7 = document.getElementById("attr7_cls7");
const attr8_cls8 = document.getElementById("attr8_cls8");
const attr9_cls9 = document.getElementById("attr9_cls9");
const attr10_cls10 = document.getElementById("attr10_cls10");
const attr11_cls11 = document.getElementById("attr11_cls11");
const attr12_cls12 = document.getElementById("attr12_cls12");
const attr13_cls13 = document.getElementById("attr13_cls13");
const attr14_cls14 = document.getElementById("attr14_cls14");
const attr15_cls15 = document.getElementById("attr15_cls15");
const attr16_cls16 = document.getElementById("attr16_cls16");
const attr17_cls17 = document.getElementById("attr17_cls17");
const attr18_cls18 = document.getElementById("attr18_cls18");
const attr19_cls19 = document.getElementById("attr19_cls19");
const attr20_cls20 = document.getElementById("attr20_cls20");

Tests:

hasAttribute attr2_cls2 first
attr2_cls2.hasAttribute("id");
classList attr2_cls2 first
attr2_cls2.classList.contains("bar");
hasAttribute attr3_cls3 first
attr3_cls3.hasAttribute("id");
classList attr3_cls3 first
attr3_cls3.classList.contains("bar");
hasAttribute attr4_cls4 first
attr4_cls4.hasAttribute("id");
classList attr4_cls4 first
attr4_cls4.classList.contains("bar");
hasAttribute attr5_cls5 first
attr5_cls5.hasAttribute("id");
classList attr5_cls5 first
attr5_cls5.classList.contains("bar");
hasAttribute attr6_cls6 first
attr6_cls6.hasAttribute("id");
classList attr6_cls6 first
attr6_cls6.classList.contains("bar");
hasAttribute attr7_cls7 first
attr7_cls7.hasAttribute("id");
classList attr7_cls7 first
attr7_cls7.classList.contains("bar");
hasAttribute attr8_cls8 first
attr8_cls8.hasAttribute("id");
classList attr8_cls8 first
attr8_cls8.classList.contains("bar");
hasAttribute attr9_cls9 first
attr9_cls9.hasAttribute("id");
classList attr9_cls9 first
attr9_cls9.classList.contains("bar");
hasAttribute attr10_cls10 first
attr10_cls10.hasAttribute("id");
classList attr10_cls10 first
attr10_cls10.classList.contains("bar");
hasAttribute attr11_cls11 first
attr11_cls11.hasAttribute("id");
classList attr11_cls11 first
attr11_cls11.classList.contains("bar");
hasAttribute attr12_cls12 first
attr12_cls12.hasAttribute("id");
classList attr12_cls12 first
attr12_cls12.classList.contains("bar");
hasAttribute attr13_cls13 first
attr13_cls13.hasAttribute("id");
classList attr13_cls13 first
attr13_cls13.classList.contains("bar");
hasAttribute attr14_cls14 first
attr14_cls14.hasAttribute("id");
classList attr14_cls14 first
attr14_cls14.classList.contains("bar");
hasAttribute attr15_cls15 first
attr15_cls15.hasAttribute("id");
classList attr15_cls15 first
attr15_cls15.classList.contains("bar");
hasAttribute attr16_cls16 first
attr16_cls16.hasAttribute("id");
classList attr16_cls16 first
attr16_cls16.classList.contains("bar");
hasAttribute attr17_cls17 first
attr17_cls17.hasAttribute("id");
classList attr17_cls17 first
attr17_cls17.classList.contains("bar");
hasAttribute attr18_cls18 first
attr18_cls18.hasAttribute("id");
classList attr18_cls18 first
attr18_cls18.classList.contains("bar");
hasAttribute attr19_cls19 first
attr19_cls19.hasAttribute("id");
classList attr19_cls19 first
attr19_cls19.classList.contains("bar");
hasAttribute attr20_cls20 first
attr20_cls20.hasAttribute("id");
classList attr20_cls20 first
attr20_cls20.classList.contains("bar");
hasAttribute attr2_cls2 last
attr3_cls3.hasAttribute("class");
classList attr2_cls2 last
attr3_cls3.classList.contains("baz");
hasAttribute attr3_cls3 last
attr3_cls3.hasAttribute("a");
classList attr3_cls3 last
attr3_cls3.classList.contains("a");
hasAttribute attr4_cls4 last
attr4_cls4.hasAttribute("b");
classList attr4_cls4 last
attr4_cls4.classList.contains("b");
hasAttribute attr5_cls5 last
attr5_cls5.hasAttribute("c");
classList attr5_cls5 last
attr5_cls5.classList.contains("c");
hasAttribute attr6_cls6 last
attr6_cls6.hasAttribute("d");
classList attr6_cls6 last
attr6_cls6.classList.contains("d");
hasAttribute attr7_cls7 last
attr7_cls7.hasAttribute("e");
classList attr7_cls7 last
attr7_cls7.classList.contains("e");
hasAttribute attr8_cls8 last
attr8_cls8.hasAttribute("f");
classList attr8_cls8 last
attr8_cls8.classList.contains("f");
hasAttribute attr9_cls9 last
attr9_cls9.hasAttribute("g");
classList attr9_cls9 last
attr9_cls9.classList.contains("g");
hasAttribute attr10_cls10 last
attr10_cls10.hasAttribute("h");
classList attr10_cls10 last
attr10_cls10.classList.contains("h");
hasAttribute attr11_cls11 last
attr11_cls11.hasAttribute("i");
classList attr11_cls11 last
attr11_cls11.classList.contains("i");
hasAttribute attr12_cls12 last
attr12_cls12.hasAttribute("j");
classList attr12_cls12 last
attr12_cls12.classList.contains("j");
hasAttribute attr13_cls13 last
attr13_cls13.hasAttribute("k");
classList attr13_cls13 last
attr13_cls13.classList.contains("k");
hasAttribute attr14_cls14 last
attr14_cls14.hasAttribute("l");
classList attr14_cls14 last
attr14_cls14.classList.contains("l");
hasAttribute attr15_cls15 last
attr15_cls15.hasAttribute("m");
classList attr15_cls15 last
attr15_cls15.classList.contains("m");
hasAttribute attr16_cls16 last
attr16_cls16.hasAttribute("n");
classList attr16_cls16 last
attr16_cls16.classList.contains("n");
hasAttribute attr17_cls17 last
attr17_cls17.hasAttribute("o");
classList attr17_cls17 last
attr17_cls17.classList.contains("o");
hasAttribute attr18_cls18 last
attr18_cls18.hasAttribute("p");
classList attr18_cls18 last
attr18_cls18.classList.contains("p");
hasAttribute attr19_cls19 last
attr19_cls19.hasAttribute("q");
classList attr19_cls19 last
attr19_cls19.classList.contains("q");
hasAttribute attr20_cls20 last
attr20_cls20.hasAttribute("r");
classList attr20_cls20 last
attr20_cls20.classList.contains("r");