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I have a "jsp" file. In that file I have "Javascript" scripting. Within <script> tags,only javascript is allowed but, how is "Expression Language" executed?

<body>
    <script type="text/javascript">
        var b=${requestScope.name};
    </script>
</body>

I have a "jsp" file. In that file I have "Javascript" scripting. Within <script> tags,only javascript is allowed but, how is "Expression Language" executed?

<body>
    <script type="text/javascript">
        var b=${requestScope.name};
    </script>
</body>
  • javascript
  • jsp
  • el
Share Improve this question edited Nov 27, 2013 at 13:19 BalusC 1.1m376 gold badges3.6k silver badges3.6k bronze badges asked Oct 11, 2013 at 12:55 reddyreddy 6752 gold badges9 silver badges19 bronze badges 1
  • you can check this detailed answer. stackoverflow./a/39355888/1577363 – erhun Commented Sep 6, 2016 at 18:47
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3 Answers 3

Reset to default 5

bring that variable from request scope to page scope,

<c:set var="myVar" value="${request.myVar}" />

after this you can try this :

<script>
    var myVar= '${myVar}' ;
</script>

Though I am not sure if it's the best approach; but this should do.

Executed.

As "Expression Language" is executed on the server side the statement 

${requestScope.name}

executed at server side and its value is available to JavaScript at client side. now at the client side the line bees 

var b='corresponding expression language executed value';

JSP is server side. You cannot access the script variables. These variables are only executed client-side.

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