Java's arraylist to javascript's array not working

Question

Below is the code in my jsp file to convert Java's ArrayList to JavaScript's Array:

<% for(int k=0;k<listDate.size();k++){%>
    var temp =<%=listDate.get(k)%>
    dates[<%=k%>] = temp;
<%}%>
document.write(dates[0]); // it prints out a totally unrelated value which I have no idea what it is "1974".

what do you store in the listDate? What should be printed, what actually gets printed? How does the resulting javaScript code look like? — luk2302
– luk2302, Commented Dec 30, 2015 at 11:20
While, its better to create JSONArray on server-side then parse it in javascript. — Parkash Kumar
– Parkash Kumar, Commented Dec 30, 2015 at 11:24
Your code might be breaking, wrap your scriptlets in single / double quotes, if you want your current solution to work. — Parkash Kumar
– Parkash Kumar, Commented Dec 30, 2015 at 11:24

Narendra Jaggi · Accepted Answer · 2016-01-01 13:02:52Z

0

This is just to give you a reference how you can update the code and used the scriptlet result --

<%

String hiddenResult = "";


// DO your business logic here and assign value to the  hiddenResult
<% for(int k=0;k<listDate.size();k++){%>
     hiddenResult = hiddenResult + listDate.get(k)+",";
     hiddenResult = hiddenResult.substring(0,hiddenResult.length()-1);  
%>

Assign the scriptlet result in the hidden field of the form and use that hidden field like this

<input type="hidden" id="hiddenInputResult" name="hiddenDDResult" value="<%=hiddenResult%>" />
<!--assign the value here in hidden field -->



function myFunction(){
    var arrayValue = document.getElementById("hiddenInputResult").value;
    // you can split by using arrayValue.split(","); to use

}

answered Jan 1, 2016 at 13:02

Narendra Jaggi

1,34812 silver badges36 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Java's arraylist to javascript's array not working

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related