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Use javascript variable in El Expressions

asked 2017-09-13 23:22:14 +0800

pierpaolocorvese gravatar image pierpaolocorvese
3 1

Hi at all, I need to initialize a javascript array using an array already initialized in a controller. I though to initialize the javascript array using the EL Expressions but I'm not able to use the index declared in javascript (I obtain this error when i try to open the window "Uncaught SyntaxError: Unexpected token ;") in the EL Expressions. Do you know how to resolve this problem or have any suggestion? Below the code, I hope it helps to clarify my problem:

<script type="text/javascript">
<![CDATA[ 
for(var index=0; index<1000;index++){ 
var value =
${ha.leftBust[index][0]};
console.log("value: "+value);
} ]]>
</script>

Thanks in advance.

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answered 2017-09-15 11:40:18 +0800

cor3000 gravatar image cor3000
6280 2 7

updated 2017-09-15 11:40:34 +0800

Hi Pier,

unfortunately that's not how it works. The EL variable is replaced only once at server side. When the client side script runs it can't evaluate again.

What you can do is output a whole js array String from an EL variable and then iterate over the js array as shown in this example.

Robert

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Asked: 2017-09-13 23:22:14 +0800

Seen: 14 times

Last updated: Sep 15 '17

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