2,322 Reusable Code Snippet Topics
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 | The syntax of the [icode]str.format()[/icode] method described in [url=http://docs.python.org/library/string.html#formatstrings]the python 2.6 documentation[/url] looks both powerful and complex. The idea of this thread is to start a collection of nice formatting examples which will ease the task of mastering this function. Please post useful examples, and document them :) |
| | Demonstrates the Right Hand Rule maze solving algorithm, with some sweet console colors and text display and erasing, in Windows. Note that if the Start is moved away from all the walls in the maze, the right hand rule fails, circling endlessly. Also, a similar failure happens if the Start … |
 | Quite commonly I see people using one of the Parse routines then catching the exception thrown if the parse fails. This is, in general, a bad practice as throwing an exception is slower than using the corresponding TryParse method. This short snippet shows the routines that I used to measure … |
 | Using the PySide GUI toolkit will make selecting, copying and pasting encrypted and decrypted text somewhat easier. Not ideal yet, but it will be a good start for those of you who are not very familiar with GUI programming.  |
| | Simple Encryption and Decryption Function using rijndael algorithm. Imports this: Imports System.Security Imports System.Security.Cryptography Imports System.IO Imports System.Runtime.InteropServices Imports System.Text.RegularExpressions Imports System.Text Source : [snipped]  |
| | This short snippet shows you how to preprocess a text to remove punctuation marks, then do a word frequency count using Counter() from the Python module collections. Finally, two sorts are applied to display words with matching frequency in alphabetical order. |
| | The code shows you how to create a persistent to file dictionary of data using the python module shelve. |
| | This is a really simple way to maintain an options file for your application in case you don't wanna mess with registry entries, along with added support for comments inside the file. The file will be created at the same location with the executable. In addition, if an error is … |
 | Here is exercise in error handling, while looping and for looping with itertools.chain. It is also exercise of functions not letting user to go without giving proper input. I call them to myself 'jail functions'. Here you could add as an exercise breaking out of loop and continuing until user … |
 | The following snippet shows how you can use binding in your queries when using PDO. For starters, here's the table structure I've used: CREATE TABLE `mytable` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(255) DEFAULT NULL, `email` varchar(255) DEFAULT NULL, `dob` date DEFAULT NULL, `level` int(11) DEFAULT NULL, PRIMARY … |
 | More or less a templet database that allows you to load, save, add, list, search, edit and delete data items. I used movies as an example, but you can easily change that to make a database of many other things.  |
| | [B]This will works Recusivly and easily[/B]  |
 | This function takes a string and an output buffer and a desired width. It then copies the string to the buffer, inserting a new line character when a certain line length is reached. If the end of the line is in the middle of a word, it will backtrack along … |
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| | So you want to find out which day of the week you were born. Well at least some of us do. I actually wrote this program because my whole family was born on Sundays, and my friends didn't believe it! An oldie but goodie, moved from DeSmet C to Turbo …  |
| | Several people have asked about storing binary data in a database. I coded up an example today that uses an ADODB.Stream to copy the binary data but after some fiddling I found a more direct way. If you are using MS SQL Server, the easiest way I have found is … |
| | [CODE]<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CheckCode.aspx.cs" Inherits="CheckCode" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Verification code to prevent auto signup in ASP.NET 2.0</title> <style type="text/css"> <!-- body { margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; } a:link { color: #0000FF; } a:visited { …  |
| | The following code snippet shows how you can parse a DSN (Data Source Name). Why is it useful? You can now pass a single DSN parameter to your database wrapper class' constructor (instead of five separate parameters), and tear it apart into the components you need. The password and port … |
 | This piece of Java works perfectly so that onmouseover of the text an image is placed above the text, my problem is I can't come up with a piece of code for onmouseout to remove the image and restore the site to the way it was before the onmouseover. Right … |
| | A simple way to create rainbow colored text on your web page. Just cut and paste the code into Notepad, save as Rainbow.htm and run it on your browser.  |
| | In today's environment where just about anyone can snoop around your e-mail, it is prudent to securely encrypt your more private writings. This little Python program will make it easier to do so. |
| | This snippet shows how you can get the headers for an URL, for example to detect a redirect. I had to use the ANSI functions to ensure correctly returned headers. Manual entry for [HttpQueryInfo](http://msdn.microsoft.com/en-us/library/windows/desktop/aa385373(v=vs.85).aspx). Let me know if you have any questions/remarks. |
| | Hi, - Why use paging? It's not really cool to print out all 2000 rows you have in a table to the page, so it'd be nice to page them. Special cases? Yeah, if you have 1000 rows.. and you've set the maximum row per page to 20, well.. you're … |
| | Uses the PySide GUI toolkit's QtMultimedia module to play a specified sound. You can change frequency/pitch and volume of the sine wave. |
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| | This code snppet uses the wx.lib.filebrowsebutton.FileBrowseButton widget to pick a file, in this case a '.wav' sound file, and plays it with the wx.Sound widget. |
| | A simple timer for Excel VBA Excel VBA does not have a timer control. The alternative is to use the Timer() Function, and that leaves much to be desired. This code should be placed in a code module. My need was to tend to an abandoned program that was waiting …  |
| | Here is a small--complete--program that includes a sub-routine that inputs two matrices and then multiplies them. Notes: * 1) I happen to like taking input from a text file. It eliminates the need to type input from the console, especially when debugging, it prevents the possibility of making typos. * … |
| | Attached is the code for my RSS dashboard, using the DaniWeb API. It's an improved version of the mashup I posted earlier, using jQuery to get all feeds asynchronously. The part which initially loads the forums is shown below. It creates an API object, and a Parser object. The first … |
 | [B]Simple C++ program for billing[/B] NB:Excuse me experts,,,,,This is only for beginners 1.copy and paste the program in a notepad 2.save the textfile with .cpp extension 3.select file type all 4.cut the textfile and paste it in your bin folder where turbo c is located 5.open turbo c and open … |
 | 1) onkeyup send textarea values to script 2) converts textarea value to array 3) loops thru the array 4) uses regex to check if its an email address 5) changes inner html of recipient div |
 | Better way to find String in PHP ! instead of substring and other php function , This function takes Start and End , and it will return the String in between in another variable ! you can call it easily :) |
 | OK, I've taken advice from some members here, and members from another forum. And I've come up with this, thouht I'd just share it with you.  |
 | I have recently been interested in Java Swing and Game development, so naturally I began creating many different 2D games. During them I found myself having to rewrite much code, but eventually I decided to write some classes that would help me whenever I wanted to make a game. Here …  |
| | I wanted a graphical representation of the listing of my files and folders from the command line interface, just like what the CLI **tree** would give on linux system, I really don't like how the same command is displayed on windows. So, I called on ma 'Cherie' Perl do it … |
 | The days when the calculator had almost 3 thousand visits a day have gone. Since then, there have been several major versions and lots of minor versions. Somehow, I feel pleased in that the present core algorithm follows the rules of the first I read; of course, extending the simplicity … |
| | I find that I occasionaally have special projects where it would be nice to have a context menu for files. I tend to write housekeeping scripts and it is convenient to be able to run these scripts against one or more files at a time without having to navigate and … |
| | below mentioned is my code. My question is how do i make my b_btn to perform more then one action. Like when i click the back or forward button i want to make it more then one action. On clicking b_btn u go to image one and when we click … |
| | This class allows for the handling of normal and serialized cookies as well as switching between these types of cookies. Cookie Functions: Write Cookies Read Cookies Delete Cookies Use of this class is fairly simple. Step 1: Include the class source in your php project using the require or include … |
 | I wrote four simple functions to manipulate .htpasswd file ( Apache ). |
| | This code will display images within an email from the server. It will display an image with a choice of file extension which can be expanded to fit your needs. this code was originally developed for a emailing system where the images to be displayed where uploaded by the user. |
 | menuWerx is a PHP class to generate a menu for your site. Options include: debug mode, horizontal or vertical orientation & hooks, optional inline styles, and strict or transitional modes. See an example at: [url]http://www.Clear-Mind.com/menuwerx/[/url] |
 | This snippit is a follow up to my first snippit, namely "Simple website hit counter" which is written in Perl. It does exactly the same thing using PHP. "Boring", you might say? Well, I have my reasons for wanting to learn this language and one needs to start somewhere :) … |
 | Many situations arise when you have to choose between two options: true/false, male/female etc. This short snippet will only allow two chars to pass through: capital 'Y' or capital 'N'. The Read and ReadLine methods can serve also, but have the side effect you have to use Upper and Lower … |
 | Here is a code snippet that calculates the probability of the outcome of a two sided game based on the capability of each side. I used it in my football league simulator program Could be used in any number of simulators which involve two parties. For equally strong parties, the … |
| | Here is my first Code Snippet contribution: a C++ sub-routine that computes the roots of a quadratic equation. Notes: * This sub-routine checks if a = 0. * IF a = 0, then the equation is actually not a quadratic equation; it is a linear equation with one--if any--root. * … |
 | This is a routine task best done with two regexp's when using perl. |
 | So im new to the PHP world because I have to learn it for work. So one of my clients is a musician and wanted a music player so I made a simple way the user could click a link and load a song. ok first I set the variable … |
| | I really got bored and tired of trying to find or remember some codes usage in so many files saved on my system, when it was needed. So, I called 'Monsieur' perl for help, hacking together some codes which works great for me and solve my problem of boredom. You …  |
| | The wxPython Phoenix project can be used with Python version 2 and version 3. The project applies pretty much the familiar wxPython code. Here we are testing a dragable borderless frame. |
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