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Data validation with JavaScript and regular expressions

Discover how regular expressions offer a simple and elegant way to manipulate text within JavaScript. Tony Patton also explores how JavaScript's regular expression simplifies data validation. Data validation is an essential aspect of any Web application that accepts data from the user. After all, you must ensure the...

Tags: JavaScript, Data Validation, Tony Patton, Scripting languages, regular expression, caret, Web Development Zone Newsletter, Parameter, Expression, String, RegExp, Escape Character, Software/Web Development, Web Development

Technical articles 2006-09-18

Additional Resources

Sp4MRing (rar)

Sp4MRing is an optimised mIRC script. Its main function is to update itself from Internet, you don't need to download something again. A simple press on 'F2' and your script is up-to-date. Included: an unique script control center, an automatic update system, a quotes manager with regexp filters, crypted communication...

Tags: Automatic Update, Sp4MRing, Patches, Internet Relay Chat (IRC), Scanners, Internet, Hardware, Peripherals

Software downloads 2006-03-22

Regular expression engine simplifies e-mail validation in PHP

Validating in PHPThe download version of this article is available here:http://techrepublic.com.com/5138-3513-5951488.htmlValidating user-supplied information like e-mail addresses should be common best practice. [b]Does your Web site validate users?[/b]Why not? ?:|Where is the '+' sign in the validation regexp?The + sign is also valid in an email address. Email...

Tags: e-mail, e-mail address, Mark W. Kaelin, php, programming, programming languages, Regular Expression Engine, regular expressions, validation

Discussion threads 2005-11-14

WinMerge (exe)

WinMerge is a tool for visual difference display and merging, for both files and directories. WinMerge has Unicode support, Flexible syntax coloring editor, and Windows Shell integration. Regexp filtering for filenames and lines. Side-by-side line difference and highlights differences inside lines. A file map shows the overall file differences in...

Tags: Difference, Thingamahoochie Software, WinMerge, Microsoft Windows, Productivity, Operating Systems, Software

Software downloads 2008-06-19

Kiwi Log Viewer (exe)

Kiwi Log Viewer for Windows is an application that displays text based log files in a tabular format. Only a small section of the file is read from disk at a time which saves memory and allows you to view a file that would be too big to fit in...

Tags: Memory, File, Kiwi Enterprises, Flash Memory, Microsoft Windows, Operating Systems, Software

Software downloads 2006-11-10

InsideCAT Lite Edition (exe)

InsideCAT catalogs all your disks with excellent support for compressed and multimedia files. It enables you to locate any file quickly, including all files and folders from any PC disk or folder as well as audio-CD disks. It organizes your disk catalogs into collections and subcollections, and compressed file support...

Tags: Multimedia, Disk, InsideCAT

Software downloads 2007-12-28

Tech Tip: Monitor logs in Linux with LogSurfer+

Learn how to use the LogSurfer+ tool to monitor logs in Linux, and find out how to create rules that are relevant to your network. A number of tools exist for monitoring log files. One well-known and commonly used tool is swatch, which can send out alerts...

Tags: Guest Contributor, Linux Tips Newsletter, Linux, Monitor, SSH, Rule, Tool, LogSurfer+, LogSurfer, Productivity

Technical articles 2004-08-12

Master the lesser-known CUT and DIFF Linux commands

Anyone who uses Linux on a regular basis knows that there are some commands that you use more than others. As such, it’s easy to simply forget about some of the lesser-used commands. Two of these lesser-used commands include CUT and DIFF. Here’s what these commands do, along with their...

Tags: Brien M. Posey MCSE, Cut, Diff, DIFF Linux, DIFF Linux commands

Technical articles 2003-04-23

Get more data comparison options in MySQL with operators you may not know

This article is also available as a TechRepublic download.It's likely that if you've performed a SELECT or UPDATE query in therecent past, you've made use of one or more of MySQL'scomparison operators in constraining your query's output. Comparison is anintegral part of most SELECT queries, and MySQL comes withnumerous functions...

Tags: Software engineering/development, MySQL, Contributor Melonfire

Technical articles 2007-02-09

Control browser navigation with Browser Helper Objects

Phillip Perkins shows you how to build a rudimentary content filter, which uses the functionality of Browser Helper Objects BHOs to control browser navigation. I once read an article about AdBlock, which is an extension available to Mozilla. This add-on allows users to enter filter expressions to...

Tags: Phillip Perkins, Web browsers, Web browser, Dim sURLs, browser helper object, Web Development Zone Newsletter, Event, Microsoft Internet Explorer, NavigateComplete2 Event, Set, Variant, Internet

Technical articles 2005-08-05

Regular expressions: Variations in support

RE implementation has been deployed differently, depending on the environment. Here's a look at some of the variations in standards and conventions, along with resources for additional information.The syntax of basic regular expressions is based on the Single UNIX Specification for Regular Expressions, which is compliant with the ISO/IEC 9945-2:1993...

Tags: Programming languages, Scripting languages, Development tools, Shelley Doll, regular expression, deterministic finite automata

Technical articles 2002-07-23

Manipulate dates and time with these 10 Perl CPAN modules

This article is also available as a TechRepublic download.The ability to manipulate dates and times is fundamental tomost programming languages, and Perl is no exception. However, when it comes to moreadvanced temporal processing, the bare-bones capabilities built into Perl mayoften seem insufficient. In such situations, it's a good idea to...

Tags: Contributor Melonfire, Perl

Technical articles 2006-11-03

10 JSP tag libraries no programmer should be without

This blog entry is also available as a TechRepublic download.One of JSP's most overlooked features is its ability to work with reusable code blocks, aka "tag libraries," to add new functionality to a JSP application. These tag libraries, declared using XML-type markup, provide ready-to-use widgets that can easily be integrated...

Tags: Application Development, Javascript, Programming

Blog posts 2007-06-25

inventory IP addresses

Hi is there an easier way or automated way to collect and inventory our IP addresses?we run a DHCP server but the addresses are not pooled. IP is assigned to the same MAC address so we can remote control to the machine when we need to help user.the IP address...

Tags: eddie_is_okay@..., Flag, Hostname, IP, IP address, MAC, MACAddress, NBTable, networking, Option Explicit Dim Row, PCname Dim IPCommand, PingPattern Dim IPAddress, TheDate, Value, XL.Columns

Discussion threads 2005-01-11

Determine if a credit card number is valid using VB6

Determine if a credit card number is valid using VB6article rootToo much workRegarding the code...Total = Total + (CInt(Mid$(CStrResult, 1, 1)) _ + CInt(Mid$(CStrResult, 2, 1)))On a Mod 10 Double-Add (the common name for this...

Tags: Boolean Dim Result, credit card, credit card number, KingPlayer, loop, Microsoft Visual Basic 6.0, Mid$, mod check, programming, Result, Visa International

Discussion threads 2005-08-12

Why I love Emacs

The battle of the Linux text editors has been going on for years. In this Daily Drill Down, Michael Jennings gives you his reasons for choosing Emacs.Everyone should learn vi.Okay, so I'm beginning an Emacs Daily Drill Down by saying that everyone should learn vi. Am I insane? Well, quite...

Tags: UNIX, Operating systems, Michael Jennings, Emacs Daily Drill-Down

Technical articles 2000-09-13

An in-depth look at the Find Master Browser Utility script

Having trouble communicating on your network? You can locate the master browser in a Windows workgroup and start troubleshooting in seconds with Greg Shultz's handy Find Master Browser Utility. Here, he explains it step-by-step.To troubleshoot peer-to-peer networks, you must first be able to locate the master browser. I found a...

Tags: Operating systems, Greg Shultz, Line 7, Microsoft Windows, Cmd.exe /c, Find Master Browser Utility, SET statement, file system

Technical articles 2001-11-01

Create useful relevant JavaScript documentation with JSDoc

This blog post is also available as a TechRepublic PDF download.Whatever the reason, not documenting an application is never a good thing, even if it is usually something of a chore. This is especially true when given the task of documenting client-side JavaScript, which is usually considered something of an...

Tags: Javascript, Documentation, Application Development

Blog posts 2007-07-26

Build Your Skills: Code analysis of the Network Address Inventory Utility script

Learn the code that makes up this helpful Network Address Inventory Utility to extend its reach on your network.When troubleshooting network problems, having a list of basic information about each system on the network, such as the host name, IP Address, and MAC address, can be a big help. In...

Tags: Microsoft Excel, PRODUCTIVITY, Microsoft Office, Scripting languages, analysis, Greg Shultz, Network Address Inventory Utility, SET statement, network

Technical articles 2002-01-22