running javascript function inside jsp

Question

Is it possible to run javascript functions inside jsp tags? I'd like to run a sudden function as many times as there's objects in my ArrayList. Below doesen't work, but I hope it gives an idea of what I'm trying to achieve.

    <script>
    function test(){
        alert();
    }
    </scripts>


<% 
ArrayList<Marker> list = new ArrayList<Marker>();

list = (ArrayList<Marker>)request.getAttribute("markers"); 

for(int i = 0; i < list.size(); i++){
    %>
        <script>
        <%
        test();
        %>
        </script>
    <%
}
%>

Is it possible to do it with something like ?

<c:forEach var="name" items="${markers}">
   <%-- call my javascript function --%>

</c:forEach>

Answer 1

Below correction in your code will work fine for you

<script>
    function test(){
        alert("Hello"); // added sample text
    }
 </script>


<% 
ArrayList<Marker> list = new ArrayList<Marker>();

list = (ArrayList<Marker>)request.getAttribute("markers"); 

for(int i = 0; i < list.size(); i++){
    %>
        <script>
        test(); //No need to put java script code inside scriptlet
        </script>
    <%
}
%>

Answer 2

<% 
ArrayList<Marker> list = new ArrayList<Marker>();

list = (ArrayList<Marker>)request.getAttribute("house"); 

for(int i = 0; i < list.size(); i++){
    %>
      <script>
         test('<%= list.get(i).name %>');
      <script>
    <%
}
%>
<script>
    function test(i){
        alert(i);
    }
</script>

Answer 3

By writing your js code within the script tag inside a out.println() has shown below:

<% 
    ArrayList<Marker> list = new ArrayList<Marker>();

    list = (ArrayList<Marker>)request.getAttribute("markers"); 

       for(int i = 0; i < list.size(); i++){

              out.println("<script>test();</script>");
  }
%>