Run results for: [...spread] vs .split vs Intl.Segmenter

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser: Chrome 142

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 9 months ago

run all strings with split simple

80.6M/s

run all strings with split intl

76.4M/s

run all strings with spread unicode

60.7M/s

run all strings with spread simple

51.7M/s

run all strings with spread intl

46.4M/s

run all strings with split unicode

13.4M/s

run all strings with Intl unicode

147K/s

run all strings with Intl simple

146K/s

run all strings with Intl intl

142K/s

View exact numbers

Test name	Executions per second
✓ run all strings with split simple	80,556,952 Ops/sec
run all strings with split intl	76,357,400 Ops/sec
run all strings with spread unicode	60,715,916 Ops/sec
run all strings with spread simple	51,742,284 Ops/sec
run all strings with spread intl	46,359,016 Ops/sec
run all strings with split unicode	13,371,213 Ops/sec
run all strings with Intl unicode	147,287 Ops/sec
run all strings with Intl simple	145,572 Ops/sec
run all strings with Intl intl	141,613 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

var simple = 'test';
var unicode = '🥷🏻';
var intlFR = 'élève';

Tests:

run all strings with spread simple
[...simple]
run all strings with spread unicode
[...unicode]
run all strings with spread intl
[...intlFR]
run all strings with split simple
simple.split("")
run all strings with split unicode
unicode.split("")
run all strings with split intl
intlFR.split("")
run all strings with Intl simple
Array.from(new Intl.Segmenter().segment(simple))
run all strings with Intl unicode
Array.from(new Intl.Segmenter().segment(unicode))
run all strings with Intl intl
Array.from(new Intl.Segmenter().segment(intlFR))