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for-loop.js 954B

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  1. for (let i = 0; i < 21; i++) {
  2. console.log(i);
  3. }
  4. for (let i = 3; i < 30; i += 2) {
  5. console.log(i);
  6. }
  7. for (let i = 12; i > -15; i -= 2) {
  8. console.log(i);
  9. }
  10. for (let i = 50; i > 20; i--) {
  11. if (i % 3 === 0) {
  12. console.log(i);
  13. }
  14. }
  15. let str = 'LaunchCode';
  16. let arr = [1, 5, 'LC101', 'blue', 42];
  17. // arr.forEach(arr => console.log(arr));
  18. // let reversed = "";
  19. // for (let i = 0; i < str.length; i++) {
  20. // reversed = str[i] + reversed;
  21. // }
  22. // let gesplitst = reversed.split('')
  23. // gesplitst.forEach(gesplitst => console.log(gesplitst));
  24. for (let i = 0; i < arr.length; i++) {
  25. console.log(arr[i]);
  26. }
  27. for (let i = 0; i < str.length; i++) {
  28. console.log(str[str.length - i - 1]);
  29. }
  30. let arr1 = [2, 3, 13, 18, -5, 38, -10, 11, 0, 104];
  31. let arrEven = [];
  32. let arrOdd = [];
  33. for (let i = 0; i < arr1.length; i++) {
  34. if (arr1[i] % 2 === 0) {
  35. arrEven.push(arr1[i]);
  36. }
  37. else {
  38. arrOdd.push(arr1[i]);
  39. }
  40. }
  41. console.log(arrEven);
  42. console.log(arrOdd);