There is a list defined as:
List<String> list = Arrays.asList("Abc", "Def");
The problem is inside anchor tag the list element is coming as undefined.
for (int i = 0; i < list.size(); i++) {
<a id="<%=list.get(i)%>" href="javascript:;" onClick="openWindow(<%=list.get(i)%>);" align="left">Proceed</a>
}
The openWindow function is defined as below:
function OpenHierarchyWindow(id) {
alert("id value "+id.value);
}
The alert function is giving output as undefined. Why the list.get(i) is unable to fetch the data inside the anchor tag.
here JSP scriplets inside onClick javascript function should be quoted. You can replace
onClick="openWindow(<%=list.get(i)%>);"
With
onClick="openWindow('<%=list.get(i)%>');"
Below is complete code for the same.
<%@ page import="java.util.List"%>
<%@ page import="java.util.Arrays"%>
<!DOCTYPE html>
<html>
<head>
<title>JSP Scriplets And Java Script</title>
<script type="text/javascript">
function OpenHierarchyWindow(id) {
alert("id value " + id);
}
</script>
</head>
<body>
<%
List<String> list = Arrays.asList("Abc", "Def");
for (int i = 0; i < list.size(); i++) {%>
<a id="<%=list.get(i)%>" href="javascript:;" onClick="OpenHierarchyWindow('<%=list.get(i)%>');" align="left">Proceed</a>
<%}%>
</body>
</html>