HTML and CSS Reference
In-Depth Information
FORMAT
Arrayname.push(new elements); //
Appended to the array
EXAMPLE
myArray.push("red", "green", "yellow");
EXAMPLE
9.12
<html>
<head><title>Array push() method</title></head>
<body>
<script type="text/javascript">
1
var names=new Array("Tom", "Dan", "Liz", "Jody");
2
document.write("<b>Original array: "+
names
+ "<br />");
3
names.push("Daniel","Christian");
4
document.write("New array: "+ names + "</b>");
</script>
</body>
</html>
EXPLANATION
1
An
Array
object called
names
is declared and initialized.
2
The contents of the array (i.e., all of its elements) are displayed.
3
The
push()
method appends two new elements,
“Daniel”
and
“Christian”
, to the
end of the
names
array.
4
The array has grown. It is displayed in the browser window with its new elements
(see Figure 9.15).
Figure 9.15
The Array
push()
method before and after.
The
shift()
and
unshift()
Methods.
The
shift()
method removes the first element of
an array and returns the value shifted off; the
unshift()
method adds elements to the
beginning of the array. These methods are just like
pop()
and
push()
except that they
manipulate the beginning of the array instead of the end of it.
