Monday, 12 June 2017

J query attr Method Example

The jQuery attr() method is used to set or return attributes and values of the selected elements.

There are two usage of jQuery attr() method.

To return attribute value: This method returns the value of the first matched element.
To set attribute value: This method is used to set one or more attribute/value pairs of the set of matched elements.

Note: Run below the example in you're deve tool.
  1. <!DOCTYPE html>  
  2. <html>  
  3. <head>  
  4. <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>  
  5. <script>  
  6. $(document).ready(function(){  
  7.     $("button").click(function(){  
  8.         $("img").attr("width", "500");  
  9.     });  
  10. });  
  11. </script>  
  12. </head>  
  13. <body>  
  14. <img src="Image.jpg" alt="Good Morning Friends"width="284" height="213"><br>  
  15. <button>Set the width attribute of the image</button>  
  16. </body>  
  17. </html>

  • Convenience: When you use jQuery attr() method to get the value of the attribute of an element then it can be call directly on a jQuery object and chained to other jQuery methods.
  • Cross-browser consistency: You can get rid from inconsistently changing of attribute?s value on different browsers or even on different versions of a single browser.
More Details: https://goo.gl/7GA1Zd