Run results for: unique values in array x8924t

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36

Browser: Chrome 118

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
reduce includes	2498705.8 Ops/sec
set spread	1553796.5 Ops/sec
set filter	1158095.5 Ops/sec
set Array.from	1437789.2 Ops/sec
filter	2314746.0 Ops/sec

Script Preparation code:

var data = ["grinning", "smiley", "smile", "grin", "laughing", "sweat_smile", "rolling_on_the_floor_laughing", "joy", "slightly_smiling_face", "grinning", "smiley", "smile", "grin", "laughing", "sweat_smile", "rolling_on_the_floor_laughing", "joy", "slightly_smiling_face", "grinning", "smiley", "smile", "grin", "laughing", "sweat_smile", "rolling_on_the_floor_laughing", "joy", "slightly_smiling_face", "grinning", "smiley", "smile", "grin", "laughing", "sweat_smile", "rolling_on_the_floor_laughing", "joy", "slightly_smiling_face", "grinning", "smiley", "smile", "grin", "laughing", "sweat_smile", "rolling_on_the_floor_laughing", "joy", "slightly_smiling_face", "grinning", "smiley", "smile", "grin", "laughing", "sweat_smile", "rolling_on_the_floor_laughing", "joy", "slightly_smiling_face"];

Tests:

reduce includes
data.reduce((acc, item) => { if (!acc.includes(item)) acc.push(item); return acc; }, []);
set spread
[...new Set(data)];
set filter
data.reduce((acc, item) => { acc.add(item); return acc; }, new Set());
set Array.from
Array.from(new Set(data))
filter
data.filter((v, i, a) => a.indexOf(v) === i)

Run results for: unique values in array x8924t

reduce includes

set spread

set filter

set Array.from

filter