Upgrade to Pro — share decks privately, control downloads, hide ads and more …

AJAX: A Gentle Introduction

AJAX: A Gentle Introduction

Adrian Kosmaczewski

April 26, 2007
Tweet

More Decks by Adrian Kosmaczewski

Other Decks in Technology

Transcript

  1. AJAX

    View Slide

  2. A gentle introduction

    View Slide

  3. (very gentle)

    View Slide

  4. View Slide

  5. What is AJAX?

    View Slide

  6. View Slide

  7. View Slide

  8. View Slide

  9. View Slide

  10. View Slide

  11. View Slide

  12. View Slide

  13. View Slide

  14. View Slide

  15. Asynchronous
    Javascript
    And
    XML

    View Slide

  16. Why?

    View Slide

  17. Interactive Web Apps

    View Slide

  18. View Slide

  19. No need to reload pages

    View Slide

  20. View Slide

  21. Less restrictive

    View Slide

  22. View Slide

  23. It is more a pattern...

    View Slide

  24. View Slide

  25. ...than a technology

    View Slide

  26. View Slide

  27. Who? When?

    View Slide

  28. View Slide

  29. The first AJAX
    application was
    Outlook Web Access

    View Slide

  30. View Slide

  31. Adopted by Mozilla

    View Slide

  32. View Slide

  33. And Google

    View Slide

  34. View Slide

  35. View Slide

  36. View Slide

  37. Jesse James Garrett
    from Adaptive Path
    coined the name “AJAX”

    View Slide

  38. View Slide

  39. New technology?

    View Slide

  40. (not really)

    View Slide

  41. View Slide

  42. HTML + CSS

    View Slide

  43. View Slide

  44. DOM

    View Slide

  45. View Slide

  46. XMLHttpRequest

    View Slide

  47. View Slide

  48. JavaScript...

    View Slide

  49. View Slide

  50. ...acting as the glue

    View Slide

  51. View Slide

  52. What for?

    View Slide

  53. Real-time form
    validation

    View Slide

  54. View Slide

  55. Auto-completion

    View Slide

  56. Master-detail views

    View Slide

  57. ... sophisticated UIs

    View Slide

  58. View Slide

  59. Happy users

    View Slide

  60. View Slide

  61. View Slide

  62. View Slide

  63. View Slide

  64. How?

    View Slide

  65. View Slide

  66. HTTP requests in the
    background

    View Slide

  67. View Slide

  68. (lots of them)

    View Slide

  69. Asynchronously

    View Slide

  70. View Slide

  71. Callbacks in JavaScript

    View Slide

  72. View Slide

  73. readyState == 4 &&
    request.status == 200

    View Slide

  74. View Slide

  75. responseText
    responseXml

    View Slide

  76. View Slide

  77. Interactions

    View Slide

  78. View Slide

  79. View Slide

  80. View Slide

  81. Problems?

    View Slide

  82. Back button

    View Slide

  83. View Slide

  84. Bookmarks

    View Slide

  85. View Slide

  86. Confusing user
    experience

    View Slide

  87. View Slide

  88. More JavaScript!

    View Slide

  89. View Slide

  90. Difficult to debug

    View Slide

  91. View Slide

  92. Viewable source

    View Slide

  93. View Slide

  94. Browser support?

    View Slide

  95. Internet Explorer 5+

    View Slide

  96. View Slide

  97. Mozilla
    Opera 9+
    Apple Safari

    View Slide

  98. Web 2.0?

    View Slide

  99. View Slide

  100. AJAX ≠ Web 2.0

    View Slide

  101. AJAX < Web 2.0

    View Slide

  102. AJAX =
    Core feature of Web 2.0

    View Slide

  103. View Slide

  104. Web as a platform
    Collective intelligence
    Multiple devices
    Rich user experience

    View Slide

  105. Future?

    View Slide

  106. View Slide

  107. View Slide

  108. View Slide

  109. View Slide

  110. View Slide

  111. View Slide

  112. Books?

    View Slide

  113. View Slide

  114. View Slide

  115. View Slide

  116. View Slide

  117. View Slide

  118. And one more thing...

    View Slide

  119. View Slide

  120. Thank you!

    View Slide

  121. Questions?

    View Slide