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whats wrong with this code trying to add sound on buttons with class name .drum in html

var drumlenght = querySelectorAll(".drum").length

for (var i = 0; i < drumlenght; i++) {
  document.querySelectorAll(".drum")[i].addEventListener("click", function() {
    alert("hi")
  });
}

whats wrong with this code trying to add sound on buttons with class name .drum in html.

about 4 years ago · Juan Pablo Isaza

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Answer 1 · 2022-06-30T08:33:10.866Z

This is the right structure of your code :)

learn more querySelectorAll

tips

avoid using var
when you start javaScript project line 1 you can apply use strict mode on,

'use strict';

let drumlenght = document.querySelectorAll('.drum').length;

for (let i = 0; i < drumlenght; i++) {
  document.querySelectorAll('.drum')[i].addEventListener('click', function () {
    alert('hi');
  });
}

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137

whats wrong with this code trying to add sound on buttons with class name .drum in html

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tips

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