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David Walsh Tutorials

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    Serve a Directory with PHP

    Many developers have a giggle at PHP, even looking down at the language, but let's be honest:  most of our blogs are powered by it (WordPress) and it's a great language to dabble around with.  I cut my teeth on PHP, though I prefer to avoid PHP these days. But...

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    Tips you can Use to Build an Excellent eCommerce Experience

    There are many reasons to build a good eCommerce experience if you are planning to build an eCommerce website. Visitors can place items in their cart and leave your site without making a purchase. In fact, three out of every four of them will do so.

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    OSCON: Live Stream

    O'Reilly's OSCON is upon us and I'm super excited to share with you a live stream of OSCON keynotes, courtesy of O'Reilly! Check back here every morning this week to get a sneak peek at the best conference in the open source community! Thank you...

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    Detect Error Type with JavaScript

    JavaScript error reporting and catching is important and will only get more important as our web applications become more feature rich and powerful. I have never used try/catch blocks in depth -- I usually just catch exceptions for stuff that's usually known to cause problems. Remember this one from the IE6...

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    Serve a Directory with Node.js

    As I mentioned in Serve a Directory with Python, sometimes you need a directory to be "served" instead of loading the file:// location within your browser.  In the past I would mess around with MAMPStack and swapping out httpdocs directories, but there are better tools these...

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    OSCON Portland: Free Expo Plus Passes

    The O'Reilly Open Source Convention is just a few weeks away and we have free expo plus passes available. OSCON is the best place to sharpen your skills and discover important new trends, making you better at what you do and rekindling your love...

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    Merge Arrays with JavaScript

    Merging arrays is a fairly common occurrence.  I remember when I worked a lot with PHP I would use array_merge() all the time.  I found myself merging arrays often when handling form submission. JavaScript has a simple, native function for merging arrays (concat) but it produces a new array.

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    Confessions of a Web Developer XV

    It's been quite a while since I've gotten a few things off of my chest and since I'm always full of peeves and annoyances I thought it was time to unleash: I sometimes regret being a software engineer.  I've been doing a lot of manual labor for a friend...

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    Making Data Management Easy with Transpose

    One problem with data collection is that we all want capture to be quick and we all want data to be organized -- but there's seldom a utility that allows both. Evernote allows note-taking but it can lose its structure...and no one wants...

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    Serve a Directory via Python

    Sometimes I'm working with a test HTML file and some JavaScript but need to work off of a served space.  In that case, I sometimes need to swap out folders within MAMP Stack which leads to a maintenance nightmare.  Bleh. I recently found out that you can...