Run results for: string.slice vs regex

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 month ago

Script Preparation code:

const strings = [ 'onclick', 'onwheel', 'onresize', 'noclick', 'nowheel', 'noresize' ];
function getStrings() {
  return strings;
}

AخA
 
const strings = [ 'onclick', 'onwheel', 'onresize', 'noclick', 'nowheel', 'noresize' ];function getStrings() {  return strings;}

Tests:

const regex = /^on/

for( let i = 0; i < 10000; i++ ) {
	getStrings().forEach( str => regex.test( str ) );
}

​x
 
const regex = /^on/​for( let i = 0; i < 10000; i++ ) {    getStrings().forEach( str => regex.test( str ) );}​​

for( let i = 0; i < 10000; i++ ) {
	getStrings().forEach( str => str.slice(0, 2) === 'on' );
}

 
for( let i = 0; i < 10000; i++ ) {    getStrings().forEach( str => str.slice(0, 2) === 'on' );}​​​

for( let i = 0; i < 10000; i++ ) {
	getStrings().forEach( str => str[ 0 ] === 'o' && str[ 1 ] === 'n' );
}

 
for( let i = 0; i < 10000; i++ ) {    getStrings().forEach( str => str[ 0 ] === 'o' && str[ 1 ] === 'n' );}