pass a groovy array to javascript code

Question

I try to pass an array from a controller to a javascript code into a gsp page. I tried with
Controller :

           def stat(){
           def listSubject = [["Physique", 10, 85, 1], ["Arabe", 20, 14, 3]] 

            [listSubject]
                             }

stat.gsp :

               var data=${listSubject} ;

But it looks like considering the data as if it was a string and not an array. I tried also to add

             var data=${listSubject.encodeAsJavaScript()} ;

But No result is matched. Please i need your helps :( Thanks

Look at the actual HTML of the resulting page. That will say a good bit about the problem, and such output should be included in the question. — user2864740
– user2864740, Commented Aug 20, 2014 at 21:58
[listSubject] has no meaning outside of the context of the controller action. It will have a meaning if the model (of MVC) is tailored appropriately, which means [listSubject: listSubject] will create a key<>value in the model which can then be accessed in the gsp as ${listSubject}. — dmahapatro
– dmahapatro, Commented Aug 20, 2014 at 22:10

Mr. Cat · Accepted Answer · 2014-08-20 22:32:22Z

4

The best way to pass data in gsp to javascript is JSON. Try this:

def stat(){
    def listSubject = [["Physique", 10, 85, 1], ["Arabe", 20, 14, 3]] as grails.converters.JSON
    [listSubject:listSubject]
}

answered Aug 20, 2014 at 22:32

Mr. Cat

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