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  • Writing Efficient SQL: Set-Based Speed Phreakery

    Phil Factor's SQL Speed Phreak challenge is an event where coders battle to produce the fastest code to solve a common reporting problem on large data sets. It isn't that easy on the spectators, since the programmers don't score extra points for commenting their code. Mercifully, Kathi is on hand to explain some of the TSQL coding secrets that go to producing blistering performance.

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  • Create simple jQuery plugin

    - by ybbest
    In the last post, I have shown you how to add the function to jQuery. In this post, I will show you how to create plugin to achieve this. 1. You need to wrap your code in the following construct, this is because you should not use $ directly as $ is global variable, it could have clash with some other library which also use $.Basically, you can pass in jQuery object into the function, so that $ is made available inside the function. (JavaScript use function to create scope, so you can make sure $ is referred to jQuery inside the function ) (function($){ //Your code goes here. }; })(jQuery); 2. Put your code into the construct above. (function ($) { $.getParameterByName = function (name) { name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]"); var regexS = "[\\?&]" + name + "=([^&#]*)"; var regex = new RegExp(regexS); var results = regex.exec(window.location.search); if (results == null) return ""; else return decodeURIComponent(results[1].replace(/\+/g, " ")); }; })(jQuery); 3. Now you can reference the code into you project and you can call the method in you JavaScript References: Provides scope for variables Variables are scoped at the function level in javascript. This is different to what you might be used to in a language like C# or Java where the variables are scoped to the block. What this means is if you declare a variable inside a loop or an if statement, it will be available to the entire function. If you ever find yourself needing to explicitly scope a variable inside a function you can use an anonymous function to do this. You can actually create an anonymous function and then execute it straight away and all the variables inside will be scoped to the anonymous function: (function() { var myProperty = "hello world"; alert(myProperty); })(); alert(typeof(myProperty)); // undefined How does an anonymous function in JavaScript work? Building Your First jQuery Plugin A Plugin Development Pattern

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  • Functional vs. Non-Functional Requirements vs Design ideas in an SRS

    - by Nicholas Chow
    For a school project, I had to create a SRS for a "fictional" application. However they did not show us what it exactly entails, and were very vague with explanations. The SRS asked of us has to have at least 5 functional requirements, 5 non functional requirements and 1 constraint. Now I have tried my best to make one however I there are still some uncertainties left, I hope you experts can tell me whether or not I am thinking in the right direction. I will keep on updating this posts as I have questions regarding requirements that are vague to me, thank you all in advance for making SRS more clear for me FR1 Registration of Organizer FR1 describes the registration of an Organizer on CrowdFundum FR1.1 The system shall display a registration form on the website. FR1.2 The system shall require a Name, Username, Document number passport/ID card, Address, Zip code, City, Email address, Telephone number, Bank account, Captcha code on the registration form when a user registers. FR1.3 The system shall check whether the Name, Username, Document number passport/ID card, Address, Zip code, City, Email address, Telephone number, Bank account, Captcha code are filled out correctly within 1 seconds after a user submits the registration form. FR1.4 The system shall display an error message containing: “Registration could not be completed” to the subscriber within 1 seconds after the system check of the registration form was unsuccessful. FR1.5 The system shall send a verification email containing a verification link to the subscriber within 30 seconds after the system check of the registration form was successful. FR1.6 The system shall add the newly registered Organizer to the user base within 5 seconds after the verification link was accessed. Questions: FR1.1 Is this a functional requirement, or have I incorporated design idea in it by using "shall display on website". If so what would be a better way to write it? FR1.2 Is this better written in one requirement, or should I write each condition as a seperate requirement? FR1.3-1.5 Are these functional requirements or did I mix some non functional elements in it? How is it better phrased? FR1.3-1.6 Are these all correct functional requirements? As in free of ambiguity, complete, implementation free etc.

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  • Announcing the Drive Installation Scope

    Announcing the Drive Installation Scope On September 12, Google Drive released a new feature of great interest to many Drive web app developers: the installation scope. In this session we'll discuss the benefits of the installation scope, walk through the related documentation, and do a brief demo of how it works. From: GoogleDevelopers Views: 0 0 ratings Time: 00:00 More in Science & Technology

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  • A tale of two (and more) apps

    Robert Cooper gave a great lightning talk at our recent Atlanta GTUG meetup, where he discussed using a single codebase to target multiple mediums (e.g. Android, Facebook, Wave...

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  • Are there any formal approaches for familiarising oneself with a new or legacy codebase? [closed]

    - by codecowboy
    Possible Duplicate: How do you dive into large code bases? As a contractor, I often encounter legacy codebases which might have little or no supporting documentation. Are there any techniques or best practices? I work with PHP and web applications, though also face situations in which I have to edit code in an unfamiliar language. How can I leave a codebase in better shape, learn something along the way and impress the team I'm working with?

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  • More Than a Map - Computerlogy

    More Than a Map - Computerlogy In Bangkok, Thailand we met with the co-founder of Computerlogy, Vachara Aemavat. Computerlogy is a Google Maps API development shop. Among their many great projects, they have built a great store locator for Siam Commercial Bank and a viral maps app that helps people find high ground during the Thai flood seasons. Read more on morethanamap.com #morethanamap From: GoogleDevelopers Views: 60 4 ratings Time: 02:04 More in Science & Technology

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  • WebSocket Protocol Updated

    WebSocket is "TCP for the Web," a next-generation full-duplex communication technology for web applications being standardized as a part of Web Applications 1.0 . The WebSocket protocol is...

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  • Sneak Preview - New CodePlex UI

    We have been busy the last several months working to improve the overall experience for the CodePlex community. We have been working through some of the top requested items, such as our big announcement last week enabling Git. Something that is not explicitly on the feature request list are requests to update the web site look and user experience.  As Brian Harry mentioned, the Future of CodePlex is Bright, so it is time to start brightening up the place. Goals As with any sizeable change you need to decide the scope of changes you want to tackle. We decided that we would optimize on incremental improvements verses taking months to get a completely new experience released. Our goals with this user experience work is to refresh the look and feel of the site, introduce new visual elements and set up the site for future structural changes. So this is not the end, just the beginning. Early Views I want to set a few expectations first, these screen shots are not final, and we are still working through the content and final element placement. Feedback is always welcome, just take that in mind as you review the images. New CodePlex Home The navigation changed a good bit on the home page and we have moved the search to a more consistent location across the site.   User Profile Users Home Page The goal was to make it easier to find and take action on common tasks such as creating projects. Project Home Issue Tracker   This should give you a taste of where we are going with the new user experience.     As always we love the feedback, either comment below, find us on Twitter @codeplex or @mgroves84, or create or vote up suggestions.

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  • My 2011 Professional Development Goals

    - by kerry
    I thought it might be a good idea to post some professional goals for 2011.  Hopefully, I can look at this list at the end of the year and have accomplished most of them. Release an Android app to the marketplace – I figured I would put this first because I have one that I have been working on for a while and it is about ready.  Along with this, I would like to start another one and continue to develop my Android skills. Contribute free software to the community – Again, I have an SMF plugin that will fill this requirement nicely.  Just need to give it some polish and release it.  That’s not all, I would like to add a few more libraries on github, or possibly contribute to an open source project. Regularly attend a user group meetings outside of Java – A great way to meet people and learn new things. Obtain the Oracle Certified Web Developer Certification – I got the SCJP a few years ago and would like to obtain another one.  One step closer to Certified Enterprise Architect. Learn scala – As a language geek, I like to stick to the Pragmatic Programmer’s ‘learn a new language every year’ rule (last year was Ruby).  Scala presents some new concepts all wrapped in a JVM-based OOP language.  Time to dig in. Write an app using JSF – New JEE 6 features are pretty slick.  I want to really leverage them in an app. Present at a user group meeting – Last but not least, I would like to improve my public speaking and skills in presenting.  Also, is a great reason to dig in to some latest and greatest tech. Use git more, and more effectively – Trying to move all my personal projects from Subversion to Git. That’s it.  A little daunting, but I am confident I can at least touch on most of these and it’s a great roadmap to my professional development.

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  • Google I/O 2012 - Fireside Chat with the Hangouts Team

    Google I/O 2012 - Fireside Chat with the Hangouts Team Come join a conversation with the Google+ Hangouts team. Hear the thinking behind Google's real time strategy and learn how businesses, broadcasters, developers, and families are all using the product. Ever wondered how a hangout on air works? Come to this session to get all your questions answered and learn what's in store for hangouts in the future. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 58 0 ratings Time: 01:00:01 More in Science & Technology

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  • Google I/O 2012 - YouTube Channels: Get with the Program!

    Google I/O 2012 - YouTube Channels: Get with the Program! Dror Shimshowitz, AJ Crane YouTube allows anyone to distribute videos to 800m web, mobile and TV viewers around the world. Come learn how to leverage this powerful platform to build an audience and market your products. We'll walk you through tips and techniques for building, programming, and promoting your very own YouTube channel. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 0 0 ratings Time: 53:11 More in Science & Technology

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  • G+ Platform Office Hours -- Retrieving Profile Information with the Sign In Button

    G+ Platform Office Hours -- Retrieving Profile Information with the Sign In Button Join us for a live coding demo of the sign in button and how to retrieve profile information using it! Or skip ahead to what you really care about: Meet your presenters: goo.gl Render the Sign-In Button: goo.gl Add a Client ID: goo.gl See Sign-In Render: goo.gl Grab the user resource (with live XHR/REST debugging*!): goo.gl Retrieve and render the user resource: goo.gl *If you don't feel you need a debugging crash course, feel free to skip from 10:14 to 18:30. :) From: GoogleDevelopers Views: 659 17 ratings Time: 29:39 More in Science & Technology

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  • Google I/O 2012 - Not Just a Map

    Google I/O 2012 - Not Just a Map Josh Livni, Nabil Naghdy The Google Maps API is the most popular mapping platform in the world, but it offers developers and users so much more than just a map. In this session we'll review the wealth of additional value that the Maps API has to offer, and the essential features that developers should be aware of across a number of verticals, including real estate, travel, and retail. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 694 0 ratings Time: 50:50 More in Science & Technology

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