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Feb 18th, 2018
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  1. $('body').keydown(
  2. function(event) {
  3. var charCode = (event.which) ? event.which : event.keyCode;
  4. var char = String.fromCharCode(charCode);
  5. console.log(char + " is down pressed");
  6. }
  7. );
  8.  
  9. $('body').keyup(
  10. function(event) {
  11. var charCode = (event.which) ? event.which : event.keyCode;
  12. var char = String.fromCharCode(charCode);
  13. console.log(char + " is up pressed");
  14. }
  15. );
  16.  
  17. if (fromCharCode(e.which).toUpperCase() == fromCharCode(e.which))
  18.  
  19. $('body').on({
  20. keypress: function(e) {
  21. var char = String.fromCharCode(e.which),
  22. isUpper = char == char.toUpperCase();
  23. console.log(char + ' is pressed' + (isUpper ? ' and uppercase' : ''))
  24. }
  25. });
  26.  
  27. document.addEventListener("keypress", function (event) {
  28. const key = event.key;
  29. const keyLower = key.toLowerCase();
  30.  
  31. // Check it is a char between A-Z, not numbers, etc.
  32. if (key.length !== 1 || keyLower < a || keyLower > z) {
  33. return;
  34. }
  35.  
  36. // Check for case
  37. const isUpperCase = (key !== keyLower);
  38. });
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