How to assign or initialize a Java array to Javascript array, without using JSP?

Question

I am working in Play framework and I need to use Java array inside Javascript.

I tried the following -

var jsarray = ${javaArray};

Where javaArray is the array in the Java controller, being rendered to the HTML view.

But, it is not working. Can anyone please help me on this?

Grooveek · Accepted Answer · 2011-05-11 15:31:07Z

3

Don't forget you're not passing variables... You're writing javascript code

So, you have to make your array rendering nicely for Javascript

var jsArray = [%{javaArray.eachWithIndex{it,idx->
                 }%
                 ${it}${(idx<javaArray.size()-1)?",":""}
                 %{
                 }
                 }%]

Use something that fits with your template engine. You have to iterate through your array then prints out the values on the view

PS : I've used the Groovy notation...

edited May 11, 2011 at 15:31

answered May 11, 2011 at 15:21

Grooveek

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3 Comments

Tom Chandler Over a year ago

I don't know if Play/Scala will do it automatically with the .each function, but you need to comma separate each array value.

Grooveek Over a year ago

I was editing the post to say that... You should test the end of the array to not add the last comma thanks for spotting :-)

Sai Over a year ago

Thanks a lot... It worked for me... Since I am using a string array, I need to modify the above as "${it}" - (added "")

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