Examples on JavaScript: arrays

Showing posts with label arrays. Show all posts

JavaScript: Join Function

join Function:
Joins all elements of an array into a string.

Syntax:
join(separator);

Example in HEAD section:

<html>
<head>
<script language="javacsript">
num=new Array("One""two","Three","our");
var str;
str=num.join();
document.write(str + "<br>");
str=num.join(" , ");
document.write(str + "<br>");
str=num.join(" + ");
document.write(str + "<br>");
</script>
</head>
</html>

Example in BODY section:

<html>
<head>
<script language="javacsript">
</head>
<body>
num=new Array("One""two","Three","our");
var str;
str=num.join();
document.write(str + "<br>");
str=num.join(" , ");
document.write(str + "<br>");
str=num.join(" + ");
document.write(str + "<br>");
</script>
</body>
</html>

OUTPUT

One,two,Three,Four
One , two , Three , Four
One + two + Three + Four

JavaScript: Concat Function

concat Function:
Joins two arrays and returns a new array.

Syntax:
concat(arrayName2,arrayName3, ...,arrayNameN);

Example in HEAD section:

<html>
<head>
<title>Concat Function</title>
<script language="javascript">
var s1="Oh "
var s2="what a beautiful "
var s3="morning"
var s4=s1.concat(s2,s3)
document.write(s4);
</script>
</head>
</html>

Example in BODY section:

<html>
<head>
<title>Concat Function</title>
</head>
<body>
<script language="javascript">
var s1="Oh "
var s2="what a beautiful "
var s3="morning"
var s4=s1.concat(s2,s3)
document.write(s4);
</script>
</body>
</html>

OUTPUT

Oh what a beautiful morning

Javascript: Create Array

Arrays:Arrays are Javascript object data capable of story sequence of values. These values are store index location with in array.
Array must be declare before it use.

Syntax:
1. arrayname = new Array(arraylength);
2. arrayname = new Array();

An array element index start with Zero (0) and end with arraylength-1

Example:

<html>
<head>
<title>Arrays</title>
</head>
<body>

&ltscript language="javascript">
var months=new Array("January","February","March","April","May","June","July","August","September","October","November","December");
var i=0;
for(i=0;i<12;i++)
{
document.write(months[ i ] + "&ltbr>");
}
</script>

</body>
</html>

OUTPUT

January
February
March
April
May
June
July
August
September
October
November
December

JavaScript: Join Function

JavaScript: Concat Function

Javascript: Create Array

More Examples