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Feb 21st, 2020
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  1. <section>
  2. <button class="changeDiv" id="Button_1">1</button>
  3. <button class="changeDiv" id="Button_2">2</button>
  4. <button class="changeDiv" id="Button_3">3</button>
  5. <button class="changeDiv" id="Button_4">4</button>
  6.  
  7. <script>
  8.  
  9. var buttons = document.getElementsByClassName("changeDiv");
  10. for (var i = 0; i < buttons.length; i++) {
  11. buttons[i].addEventListener("click", function () {
  12. alert("button clicked");
  13. });
  14. }
  15.  
  16. </script>
  17. </section>
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