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Jan 26th, 2020
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  1. (function () {
  2.  
  3. const increaseButton = document.querySelector('.btns__btn_increase');
  4. const decreaseButton = document.querySelector('.btns__btn_decrease');
  5. const resetButton = document.querySelector('.btns__btn_reset');
  6.  
  7. function createCounter() {
  8. const counterText = document.querySelector('.counter__text');
  9. let counter = 0;
  10.  
  11. function render() {
  12. counterText.textContent = counter;
  13. }
  14.  
  15. function increaseCounter() {
  16. counter+= 1;
  17. render();
  18. }
  19.  
  20. function decreaseCounter() {
  21. counter+= -1;
  22. render();
  23. }
  24.  
  25. function resetCounter() {
  26. counter = 0;
  27. render();
  28. }
  29.  
  30.  
  31. return {
  32. increaseCounter,
  33. decreaseCounter,
  34. resetCounter
  35. };
  36. }
  37.  
  38. const myCounter = createCounter();
  39.  
  40. increaseButton.addEventListener('click', function () {
  41. myCounter.increaseCounter();
  42. });
  43.  
  44. decreaseButton.addEventListener('click', function () {
  45. myCounter.decreaseCounter();
  46. });
  47.  
  48. resetButton.addEventListener('click', function () {
  49. myCounter.resetCounter();
  50. });
  51. })();
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