JavaScript Reference/Javascript Methods/getExpression

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"getExpression()" Example

   <source lang="javascript">
  

<html> <body> <script language="JScript"> function function1() {

  myDiv.style.setExpression("height","eval(myDiv.innerHTML)");

} function function2() {

   alert(myDiv.style.getExpression("height"));

} function function3() {

   alert(myDiv.style.removeExpression("height"));

} function function4() {

   myDiv.innerHTML = 100; document.recalc();

} </script> <button onclick="function1();">Set expression</button> <button onclick="function2();">Get expression</button> <button onclick="function3();">Remove expression</button> <button onclick="function4();">Recalc</button>

20

</body> </html>


     </source>
   
  


"getExpression()" is applied to

   <source lang="javascript">

+----------------+--------------------------------------------------------------+ | Applied_To |<a> <acronym> | | |<address> <area> | | | |

| |
|

| |<body>
| | |<button> |

| |
|

| | <col> | | |<colgroup> currentStyle | | |<custom>

| | | |

| |<dir>
| | |
| | | <fieldset> | | | <form> | | |<hn>
|

| | <iframe> | | |<img> <input type="button"> | | |<input type="checkbox"> <input type="file"> | | |<input type="hidden"> <input type="image"> | | |<input type="password"> <input type="radio"> | | |<input type="reset"> <input type="submit"> | | |<input type="text"> | | | <label> |

| |<legend>
  • | | |<listing> <marquee> | | |<menu> <nobr> | | |<object>
      | | |<option>

      | | |

                                                            |
      |                |                                                    |
      |                |runtimeStyle                                               |
      |                |                          <select>                      |
      |                |                                                 |
      |                |                                              |
      |                |style                                                    |
      |                |                                                  |
      |                |<tbody>                                                   |
      |                |                             
        | | | | +----------------+--------------------------------------------------------------+ </source>

        "getExpression()" Syntax, Parameters and Note

        <source lang="javascript"> Note: Returns the dynamic property expression. To use this method, you must first have used the setExpression() method.

        Syntax:

        objectName.getExpression(param1) document.all.elementID.getExpression(param1) Parameters: param1 Required; the name of the property.


        </source>

      |

      | |<textarea> <tfoot> |

      | |
      <thead> | | |