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What's the difference between BaseAdapter and ArrayAdapter?

...the difference: BaseAdapter is a very generic adapter that allows you to do pretty much whatever you want. However, you have to do a bit more coding yourself to get it working. ArrayAdapter is a more complete implementation that works well for data in arrays or ArrayLists. Similarly, there is a re...
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Why and when to use Node.js? [duplicate]

...8 (for free). We have non-blocking I/O which is simply the correct way to do I/O. This is based on an event loop and using asynchronous callbacks for your I/O. It gives you useful tools like creating a HTTP server, creating a TCP server, handling file I/O. It's a low level highly performant platf...
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What's the hardest or most misunderstood aspect of LINQ? [closed]

... Agree with ALassek. The MSDN documentation clearly states the lazy evaluation nature of LINQ. Maybe the real problem is the lazy programming nature of the developers... =) – Seiti Dec 18 '08 at 18:30 ...
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jQuery validate: How to add a rule for regular expression validation?

...a replacement for the regular expression validator. I want to be able to do something like this: 12 Answers ...
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Best way for a 'forgot password' implementation? [closed]

...e user pressed the "Forgot Password" button. The ID is a string. A long random string is created (say, a GUID) and then hashed like a password (which is a separate topic in and of itself). This hash is then used as the 'ID' in the table. The system sends an email to the user which contains a link in...
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Can you supply arguments to the map(&:method) syntax in Ruby?

...end(self, *rest, *args, &block) } end end Which will enable you to do not only this: a = [1,3,5,7,9] a.map(&:+.with(2)) # => [3, 5, 7, 9, 11] But also a lot of other cool stuff, like passing multiple parameters: arr = ["abc", "babc", "great", "fruit"] arr.map(&:center.with(20...
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Checking if an Android application is running in the background

...These APIs are not there for applications to base their UI flow on, but to do things like show the user the running apps, or a task manager, or such. Yes there is a list kept in memory for these things. However, it is off in another process, managed by threads running separately from yours, an...
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How to replace ${} placeholders in a text file?

...word is ${word} we just have to say: sed -e "s/\${i}/1/" -e "s/\${word}/dog/" template.txt Thanks to Jonathan Leffler for the tip to pass multiple -e arguments to the same sed invocation. share | ...
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git: How to ignore all present untracked files?

...gnore those files. UPDATE: the above command has a minor drawback: if you don't have a .gitignore file yet your gitignore will ignore itself! This happens because the file .gitignore gets created before the git status --porcelain is executed. So if you don't have a .gitignore file yet I recommend u...
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Convert string to symbol-able in ruby

... @Zack .to_s and .humanize should do the job unless you need to preserve full capitalization. – Tyler Diaz Sep 18 '15 at 10:00 ...