How to pass arguments to addEventListener listener function?

by

Why not just get the arguments from the target attribute of the event?

Example:

const someInput = document.querySelector('button');
someInput.addEventListener('click', myFunc, false);
someInput.myParam = 'This is my parameter';
function myFunc(evt)
{
  window.alert(evt.currentTarget.myParam);
}
<button class="input">Show parameter</button>

JavaScript is a prototype-oriented language, remember!

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