How to pass arguments to addEventListener listener function

0 votes

Here is the code:

var someVar = some_other_function();
someObj.addEventListener("click", function(){
    some_function(someVar);
}, false);

The problem is that the value of someVar is not visible inside the listener function of the addEventListener, where it is probably being treated as a new variable.

Sep 23, 2020 in Java-Script by kartik
• 37,510 points
209 views

1 answer to this question.

0 votes

Try this:

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>

Hope it helps!!
Thank you!!

answered Sep 23, 2020 by Niroj
• 82,720 points

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