JavaScript to convert an Array to String

**KAMANA** · 09-12-2009

I have an assignment program to be solved in JavaScript programming language. The program states to accept array values and then covert them to a string. I have tried several logic but all have failed. I believe there must be some inbuilt functions of JavaScript to enable this conversion. So can any one tell me how to go about this program to get the desired output using JavaScript.

**opaper** · 09-12-2009

You can use the toString() function to convert the values in an array to a string value in JScript. Here is an example:

function ArrtoStr(Arr)
{
return Stng = Arr.toString();
}

This will accept an array and then convert it to string using the toString() and return it to the called section. Implement this code in your program.

**Zecho** · 09-12-2009

Code:

<html>
<head>
<title>JavaScript Conversion using toString</title>
<script>
var ray = new Array();

function push(val)
{          
if(val=="")
alert("Required Field")

else
{
ray[ray.length]=val;
var string = "<hr><b>List</b>";
for(int j = 0; j < ray.length; j++)
{
string = string + "<br>" + ray[j];
              }
string = string +"<br><br>Array 
to String conversion<br>"+
ray.join(" ");

document.frmA.string.value = ""
document.getElementById('myDiv').innerHTML = string;
}
}
</script>
</head>
<body>
<B>Conversion of Array</B>
<form name="frmA">
<table>
<tr>
<td align="right">String</td>
<td>&nbsp;</td>
<td>
<input type="text" name="string"/></td>
</tr>
<tr>
<td align="right">&nbsp;</td>
<td >&nbsp;</td>
<td width="224">
<input type="button" Value=" Insert " onclick="push(this.form.string.value)"/>
 </td>
</tr>
</table>
</form>
<div id="Div1"></div>
</body>
</html>

This is JavaScript program that I used to accept values in Array from the user which is then displayed as String in one single line. Also the validation is done so that the user does not enters a Null value or leaves it blank.

**MindSpace** · 09-12-2009

I also had a similar program for my exam and I did the following coding for it:

Code:

<html>
<body>
<script type="text/javascript">
var Temp = ["Ross", "Mark", "McDonald"];
document.write(Temp.toString());
</script>
</body>
</html>

As the output it is displayed as:

Ross,Mark,McDonald

The toString() function forms the bases for the array to be converted to a string in JavaScript

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