How can I access a jsp array in javascript function with in a single jsp page?
String[] abc[]={"saab","volvo","bmw","Benz","Porsche","Jaguar"};
abc[0]="saab";
-
for (i=0;i<(document.getElementById("abc.length").value);i++) { alert("in loop"); var sar=request.getParameter("abc[i]"); var xyz = document.createElement("option"); xyz.text = abc[i]; xyz.value = abc[i]; abc.add(xyz);sravan– sravan2013-03-20 12:22:32 +00:00Commented Mar 20, 2013 at 12:22
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3 Answers
print it to response literally and handle it via javascript.
behind-the-scene: jsp-inline code is running on the server side. javasrcript code runs on browser..
Comments
You should serialize it to json object first with for example FlexJson.
You could serialize java array to json array which should look like
[{item1, item2},{item},{item1,item2}]
with that method
String[] temp = ...
StringBuilder builder = new StringBuilder();
builder.append("[");
for(int i = 0 ; i < temp.length ; i++){
builder.append(temp[i]);
if(i != temp.length - 1 ){
builder.append(",");
}
}
builder.append("]");
String jsonArray = builder.toString();
and add this to your request;
then in your javascript use
var array = <%= request.getAttribute("temp")%>;
check if this is it with
console.log(array);
1 Comment
sravan
please can u give me an example
<%
String[] abc={'saab',' volvo',"bmw","Benz","Porsche","Jaguar"};
%>
<script language="JavaScript">
var jsArr = new Array();
<%
for (int i=0; i < abc.length; i++) {
%>
jsArr[<%= i %>] = '<%=abc[i] %>'; //Here is the latest update check it sravan .Put single quotes.
<%}%>
</script>
function myFunction()
{
var select = document.getElementById("dropDownId");
for ( var i = 0; i < jsArr.length; i++ ){
var option = document.createElement("option");
// set the text that displays for the option
option.innerHTML = status[i];
// add the option to your select dropdown
select.appendChild(option);
}
1 Comment
PSR
give <select name="someName" id="demo"> in place of <select name id="demo">