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What is recursion and when should I use it?

One of the topics that seems to come up regularly on mailing lists and online discussions is the merits (or lack thereof) of doing a Computer Science Degree. An argument that seems to come up time and again for the negative party is that they have been coding for some number of years and they have n...
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Is calculating an MD5 hash less CPU intensive than SHA family functions?

Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip. ...
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Difference between git checkout --track origin/branch and git checkout -b branch origin/branch

Does anybody know the difference between these two commands to switch and track a remote branch? 4 Answers ...
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Does PostgreSQL support “accent insensitive” collations?

In Microsoft SQL Server, it's possible to specify an "accent insensitive" collation (for a database, table or column), which means that it's possible for a query like ...
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Sanitizing strings to make them URL and filename safe?

I am trying to come up with a function that does a good job of sanitizing certain strings so that they are safe to use in the URL (like a post slug) and also safe to use as file names. For example, when someone uploads a file I want to make sure that I remove all dangerous characters from the name. ...
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Do I need a Global.asax.cs file at all if I'm using an OWIN Startup.cs class and move all configurat

Let's say for example in a brand new ASP.NET MVC 5 application made from the MVC with Individual Accounts template, if I delete the Global.asax.cs class and move it's configuration code to Startup.cs Configuration() method as follow, what are the downsides? ...
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How to sign an android apk file

I am trying to sign my apk file. I can't figure out how to do it. I can't find good in-depth directions. I have very little programing experience, so any help would be appreciated. ...
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How do I split a string on a delimiter in Bash?

I have this string stored in a variable: 32 Answers 32 ...
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How to upload a file in Django? [closed]

As a newbie to Django, I am having difficulty making an upload app in Django 1.3. I could not find any up-to-date example/snippets. May someone post a minimal but complete (Model, View, Template) example code to do so? ...
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Using getopts to process long and short command line options

I wish to have long and short forms of command line options invoked using my shell script. 32 Answers ...