Solved

JavaScript: Shift character values by 1 for every character

Posted on 2013-05-30
2
223 Views
Last Modified: 2013-05-30
How can I increase the value of all characters by one value?  "A" should become "B" and "1" should become "2":

var x = '123abc';
alert( shift(x) ); // should alert('234bcd');

Open in new window

0
Comment
Question by:hankknight
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
2 Comments
 
LVL 25

Expert Comment

by:clockwatcher
ID: 39208850
Here's one way:
        var x = '123abc';
        alert(x.replace(/(.)/g, function (x,p1) { return String.fromCharCode(p1.charCodeAt(0)+1) }));

Open in new window

0
 
LVL 25

Accepted Solution

by:
clockwatcher earned 500 total points
ID: 39208898
Here's another (perhaps little bit easier to follow) way:
function shift_char(v) {
    var retval = '';
    for (var i=0; i <= v.length; i++) {
        retval += String.fromCharCode(v.charCodeAt(i) + 1);
    }
    return retval;
}
alert(shift_char(x));

Open in new window

0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article shows how to create and access 2-dimensional arrays in JavaScript.  It includes a tutorial in case you are just trying to "get your head wrapped around" the concept and we'll also look at some useful tips for more advanced programmers. …
Article by: DanRollins
This article describes a JavaScript program that creates a maze made of hexagonal cells.  In Part 2 (http://www.experts-exchange.com/Programming/Languages/Scripting/JavaScript/A_7850-Hex-Maze-Part-2.html), we'll extend the program by adding a depth-…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

732 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question