JavaScript Array undefined
Undefined array is a condition that occurred when a user want to print an
array element more than the declared size of element that an array object hold
in it.
The Tutorial depicts an example from JavaScript Array Undefined. In this
example we try to explain a code that makes you easy to understand
ArrayUndefined.An array variable instantiate an array object, that hold the
reference of elements indicated by array indexes[]. The for loop run and execute
the script till variable i is less than array length. The document. write print
the element in an array object that it hold.
In the same way, for loop execute the script and return you true till the
variable i is less than array length. Incase the array length is more than
the declared variable, then document. write print the undefined array on the
browser.
JavaScriptArrayUndefined.html
<html>
<head>
<title>JavaScript Array undefined</title>
<h1>JavaScript Array undefined</h1>
<hr></hr>
<script>
var array=new Array();
array[0]="Rose";
array[1]="India";
array[2]=".net";
array[3]="Rohini";
document.write("<b>"+"Array is: "+"</b>"+"<br>");
for(i=0;i<array.length;i++){
document.write(array[i]+"<br>");
}
</script>
<hr></hr>
<script>
document.write("<b>"+"Array Undefined is: "+"</b>"+"<br>");
for(i=0;i<array.length;i++){
document.write(array[5]+"<br>");
}
</script>
</head>
<body>
</body>
</html>
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