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In Clojure 1.3, How to read and write a file

I'd like to know the "recommended" way of reading and writing a file in clojure 1.3 . 6 Answers ...
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What does %~dp0 mean, and how does it work?

I find %~dp0 very useful, and I use it a lot to make my batch files more portable. 7 Answers ...
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Rails 3: Get Random Record

So, I've found several examples for finding a random record in Rails 2 -- the preferred method seems to be: 14 Answers ...
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Explicitly calling return in a function or not

... Question was: Why is not (explicitly) calling return faster or better, and thus preferable? There is no statement in R documentation making such an assumption. The main page ?'function' says: function( arglist ) expr return(value) Is it faster without calling return? Both function() and re...
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How to reset radiobuttons in jQuery so that none is checked

...e note 2 below). Note 1: it is important that the second argument be false and not "false" since "false" is not a falsy value. i.e. if ("false") { alert("Truthy value. You will see an alert"); } Note 2: As of jQuery 1.6.0, there are now two similar methods, .attr and .prop that do two related b...
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What is the benefit of using Fragments in Android, rather than Views?

When developing for Android , you can set your target (or minimum) sdk to 4 (API 1.6) and add the android compatibility package (v4) to add support for Fragments . Yesterday I did this and successfully implemented Fragments to visualize data from a custom class. ...
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What is the best way to ensure only one instance of a Bash script is running? [duplicate]

... a lockfile approach. If you acquire the lock, proceed else show a message and exit. As an example: [Terminal #1] $ lockfile -r 0 /tmp/the.lock [Terminal #1] $ [Terminal #2] $ lockfile -r 0 /tmp/the.lock [Terminal #2] lockfile: Sorry, giving up on "/tmp/the.lock" [Terminal #1] $ rm -f /tmp/the....
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Remove element of a regular array

... index + 1, dest, index, source.Length - index - 1); return dest; } And use it like: Foo[] bar = GetFoos(); bar = bar.RemoveAt(2); share | improve this answer | foll...
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Proper way to wait for one function to finish before continuing?

...function firstFunction(_callback){ // do some asynchronous work // and when the asynchronous stuff is complete _callback(); } function secondFunction(){ // call first function and pass in a callback function which // first function runs when it has completed firstFunctio...
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.htaccess rewrite to redirect root URL to subdirectory

... You can use a rewrite rule that uses ^$ to represent the root and rewrite that to your /store directory, like this: RewriteEngine On RewriteRule ^$ /store [L] share | improve this ans...