Convert arrayList to javascript array

Question

I am sending an arrayList from a java file to a .jsp file

In order to receive that array I used the following code

var words = 
        [
            <c:forEach begin="0" items="${requestScope.WordList}" var = "word">
                word,
             </c:forEach>
        ];

however it is not working .. any Idea of how to do it ?

it is not working is too generalized, please be more specific! — AllTooSir
– AllTooSir, Commented Apr 21, 2013 at 16:16
I don't think it is good practice to build JSON arrays this way. Just use a 3rd party library to do that. This kind of approach can create a lot of problems. — ubik
– ubik, Commented Apr 21, 2013 at 16:28
possible duplicate of Converting a Java ArrayList of strings to a JavaScript array — Jason C
– Jason C, Commented Mar 22, 2014 at 15:30

AllTooSir · Accepted Answer · 2013-04-21 17:08:02Z

1

Possible fix (Bad fix):

var words = 
    [
        <c:forEach items="${requestScope.WordList}" var="word" 
         varStatus="status">
          "${word}"<c:if test="${not status.last}">,</c:if>
        </c:forEach>
    ];

OR

Convert the Java ArrayList to JSON String, and use JSON.parse() to get Javascript object.

edited Apr 21, 2013 at 17:08

answered Apr 21, 2013 at 16:18

AllTooSir

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4 Comments

user1983983 Over a year ago

As the type of word probably is string you will have to put quotes around ${word}. I.e. put "${word}", in the c:forEach. A secound problem would be, that you will have a comma at the end of the array definition.

A.Shoman Over a year ago

no not working for the last line it gave the error expected ; but found ]

Kyle Over a year ago

Comma at the end is fine with most browsers

Kyle Over a year ago

Don't forget to escape the word string

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