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JavaScript: Array Objects


We left off a while back discussing the various built-in Date Objects that JavaScript has to offer. Prior to that we talked about String Objects and JavaScript Events. Here and now, we are going to go over the Array Objects, which we can use to manipulate arrays. We will start off by viewing a table of them and the definitions of each. After that we will begin with the concat() method and try our best to work our way through the remaining thirteen.

Author Info:
By: James Payne
Rating: 4 stars4 stars4 stars4 stars4 stars / 5
June 02, 2008
TABLE OF CONTENTS:
  1. · JavaScript: Array Objects
  2. · Join() Hands
  3. · Pop() and Lock
  4. · Using Pop() to Assign a Value to a Variable
  5. · Put It In Reverse()

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JavaScript: Array Objects - Put It In Reverse()
(Page 5 of 5 )

You can write text in reverse (well reverse order I should say) by using the reverse() method. This takes the text in an array and puts it in reverse order. Here, in this example, we will keep switching the order of the text. Note that Bobby is always in the middle:


<html>

<body>

<script type="text/javascript">

var bboys = new Array(3);

bboys[0] = "Greg";

bboys[1] = "Bobby";

bboys[2] = "Peter";

document.write(bboys + "<br />");

document.write(bboys.reverse()+ "<br />");

document.write(bboys.reverse()+ "<br />");

document.write(bboys.reverse());

</script>

</body>

</html>

Here is the print-out:

  Greg,Bobby,Peter
  Peter,Bobby,Greg
  Greg,Bobby,Peter
  Peter,Bobby,Greg

Well, we managed to get through five of our thirteen array methods. We will pick up where we left off in our next article, so be sure to check back often. You don't want to miss it.

Till then...


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