How to get array value in input box

sanidhya09 · 09-28-2012, 10:19 AM

Code:

<%-- 
    Document   : index
    Created on : 28 Sep, 2012, 11:41:16 AM
    Author     : Sanidhya09
--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
   </head>
    <body>
        <form method="post">
<script>
function Gurgaon()
{
document.getElementById("demo").value=sector2();
function sector2()
{
    var b=new Array;
    b[0]="sector4";
    b[1]="sector5";
    b[2]="sector6";
    var j;
    for(j=0;j<=((b.length)-1);j++)
    {
    return(b[j]);
    }
}}
</script> 

                 <select name="drop" size="1">
                <option value="none" selected="selected" ></option>
             <option value="Gurgaon" onClick="Gurgaon()">Gurgaon</option>
                  </select>
             <br/><br/>
                   <script></script>
             <input type="text" name="demo" id="demo" />
        </form>
    </body>
</html>

devnull69 · 09-28-2012, 10:25 AM

You cannot return values from inside a loop. Ok, you can, but it will stop the loop and return only the first value b[0] of the array.

What EXACTLY do you want to achieve?

sanidhya09 · 09-28-2012, 11:01 AM

Quote:

Originally Posted by devnull69

You cannot return values from inside a loop. Ok, you can, but it will stop the loop and return only the first value b[0] of the array.

What EXACTLY do you want to achieve?

I want all the values in input box. pls help, as i am very new to javascript.

devnull69 · 09-28-2012, 11:52 AM

This is not EXACTLY what you want, is it?

Code:

var b=[];
b[0]="sector4";
b[1]="sector5";
b[2]="sector6";
var result = "";
for(var j=0;j<b.length;j++)
{
   result += b[j];
}
document.getElementById("demo").value = result;

sanidhya09 · 09-28-2012, 02:43 PM

Quote:

Originally Posted by devnull69

This is not EXACTLY what you want, is it?

Code:

var b=[];
b[0]="sector4";
b[1]="sector5";
b[2]="sector6";
var result = "";
for(var j=0;j<b.length;j++)
{
   result += b[j];
}
document.getElementById("demo").value = result;

function Noida()
{
var a=new Array;
a[0]="sector1";
a[1]="sector2";
a[2]="sector3";
var i;
for(i=0;i<=((a.length)-1);i++){
document.getElementById("demo").innerHTML=a[i];
//document.write(a[i]);
}
}
I want to print all the array value in the "same" document
in

green_meep · 09-29-2012, 05:53 AM

Quote:

Originally Posted by sanidhya09

function Noida()
{
var a=new Array;
a[0]="sector1";
a[1]="sector2";
a[2]="sector3";
var i;
for(i=0;i<=((a.length)-1);i++){
document.getElementById("demo").innerHTML=a[i];
//document.write(a[i]);
}
}
I want to print all the array value in the "same" document
in

This doesn't work because you're just swapping out the innerHTML each time.

I figured you'd want some spaces between your concatenations. Obviously you can just take out the space if you don't want/need it.

EDIT: I just realized. devnull's and my posts do pretty much the exact same thing. Probably the reason it's not working (if that's the entirety of your HTML up there) is because you don't have a "" in the first place.

Code:

function Noida()
{
    var a=new Array;
    var result="";
    a[0]="sector1";
    a[1]="sector2";
    a[2]="sector3";
    var i;
    for(i=0;i<=((a.length)-1);i++)
      result=result + a[i] + " ";
    document.getElementById("demo").innerHTML=result;
}

xelawho · 09-29-2012, 02:32 PM

there is a text box with the id demo. if you want the results to end up there you need to change that line to:

Code:

document.getElementById("demo").value=result;

but you should also look at how you are calling your function. Onclicks on options in a select box are notoriously unreliable. If that's all you want your code to do I would suggest making your select like this:

Code:

<select name="drop" size="1" onchange="Gurgaon()">
<option value="none" selected="selected" ></option>
<option value="Gurgaon">Gurgaon</option>
</select>