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JS addEventListener()

This example demonstrates how to pass parameter values when using the addEventListener() method.

Click the button to perform a calculation.

Try it

let p1 = 5;
let p2 = 7;
document.getElementById("myBtn").addEventListener("click", function() {
  myFunction(p1, p2);
});

function myFunction(a, b) {
  document.getElementById("demo").innerHTML = a * b;
}