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michaelyuen

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Mar 5th, 2019
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jQuery 0.85 KB | None | 0 0
  1. <!DOCTYPE html>
  2. <html>
  3. <head>
  4.     <script
  5.         src="https://code.jquery.com/jquery-3.3.1.min.js"
  6.         integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
  7.         crossorigin="anonymous"></script>
  8. </head>
  9. <body>
  10. first page
  11.     <button type="button" class="color black" data-color="000000">black</button>
  12.     <button type="button" class="color red" data-color="FF0000">red</button>
  13.     <button type="button" class="color blue" data-color="0000FF">blue</button>
  14.     <script>
  15.         $(document).ready(function(){
  16.             var storage = localStorage;
  17.             if (storage.getItem('color')) {
  18.                 $('body').css({'background-color' : '#' + storage.getItem('color')});
  19.             }
  20.             $('.color').on('click', function(){
  21.                 var color = $(this).data('color');
  22.                 $('body').css({'background-color' : '#' + color});
  23.                 storage.setItem('color', color);
  24.             });
  25.         });
  26.     </script>
  27. </body>
  28. </html>
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