Run results for: regex vs endWith

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 Edg/115.0.1901.203

Browser: Chrome 115

Operating system: Windows

Device Platform: Desktop

Date tested: 8 months ago

Test name	Executions per second
regex end	347.9 Ops/sec
endsWith	329.8 Ops/sec

HTML Preparation code:

<div></div>

Script Preparation code:

window.regexEnd = /https?:\/\/$/;
window.match1 = 'https://';
window.match2 = 'http://';
var data = window.data = [];
const possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
var TOTAL_STRINGS = window.TOTAL_STRINGS = 100000;

function getRandomInt(max) {
  return Math.floor(Math.random() * max);
}

function makeRandomString(len) {
  var text = "";
  for( var i=0; i < len; i++ ) {
    text += possible.charAt(getRandomInt(possible.length));
  }
  return text;
}

while (data.length < TOTAL_STRINGS) {
  data.push(makeRandomString(getRandomInt(20)));
}

Tests:

regex end
var x = 0; var TOTAL_STRINGS = window.TOTAL_STRINGS; var data = window.data; var regex = window.regexEnd; while (x < TOTAL_STRINGS) { const str = data[x]; regex.test(str); x += 1; }
endsWith
var x = 0; var TOTAL_STRINGS = window.TOTAL_STRINGS; var data = window.data; var match1 = window.match1; var match2 = window.match2; while (x < TOTAL_STRINGS) { const str = data[x]; str.endsWith(match1) === 0 || str.endsWith(match2) === 0; x += 1; }

Run results for: regex vs endWith

regex end

endsWith