Run results for: Event listener anonymous function vs named inline function vs external function

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:56.0) Gecko/20100101 Firefox/56.0

Browser: Firefox 56

Operating system: Mac OS X 10.9

Device Platform: Desktop

Date tested: 3 years ago

HTML Preparation code:

<div id="element"></div>

Script Preparation code:

var element	  = document.getElementById('element');
var iterations  = 100;
var dummyString = 'Hello';

Tests:

Anonymous function
for (var i = 0; i < iterations; i++) { element.addEventListener('click', function() { element.textContent = dummyString; }); }
Named function as parameter
for (var i = 0; i < iterations; i++) { element.addEventListener('click', function setText() { element.textContent = dummyString; }); }
External function
function setText() { 'use strict'; element.textContent = dummyString; } for (var i = 0; i < iterations; i++) { element.addEventListener('click', setText); }