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Why doesn't Haskell's Prelude.read return a Maybe?

...ybe s = case reads s of [(x, "")] -> Just x _ -> Nothing share | improve this answer | follow | ...
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how to replicate pinterest.com's absolute div stacking layout [closed]

...culations – ant_Ti Aug 18 '11 at 15:05 You could use display: inline-block I suppose, but items of differing vertical ...
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Secure random token in Node.js

...nc */ function randomString(length, chars) { if (!chars) { throw new Error('Argument \'chars\' is undefined'); } var charsLength = chars.length; if (charsLength > 256) { throw new Error('Argument \'chars\' should not have more than 256 characters' + ', otherwise unpredictab...
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How can I indent multiple lines in Xcode?

When I select multiple lines of code and want to indent them as usual with TAB key, it just deletes them all. I come from Eclipse where I always did it that way. How's that done in Xcode? I hope not line by line ;) ...
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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?

... && b = b ]]: true, logical and [ a = a && b = b ]: syntax error, && parsed as an AND command separator cmd1 && cmd2 [ a = a -a b = b ]: equivalent, but deprecated by POSIX³ [ a = a ] && [ b = b ]: POSIX and reliable equivalent ( [[ (a = a || a = b) &...
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Easiest way to activate PHP and MySQL on Mac OS 10.6 (Snow Leopard), 10.7 (Lion), 10.8 (Mountain Lio

...o), and open: /etc/apache2/httpd.conf Find the line: "#LoadModule php5_module libexec/apache2/libphp5.so" And uncomment it (remove the #). Download and install the latest MySQL version from mysql.com. Choose the x86_64 version for Intel (unless your Intel Mac is the original Macbook P...
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PHP shell_exec() vs exec()

...DCAST RUNNING MULTICAST MTU:1500 Metric:1\n RX packets:16264200 errors:0 dropped:1 overruns:0 frame:0\n TX packets:7205647 errors:0 dropped:0 overruns:0 carrier:0\n collisions:0 txqueuelen:1000 \n RX bytes:13151177627 (13.1 GB) TX bytes:2779457335 (2.7 GB)\n".....
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Why doesn't django's model.save() call full_clean()?

...es an issue with the basic authentication system. You will get a ValidationError: Session with this Session key already exists. To avoid this, you need to add an if-statement for sender in list_of_model_classes to prevent the signal from overriding Django's default auth models. Define list_of_model_...
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Shuffle two list at once with same order

I'm using the nltk library's movie_reviews corpus which contains a large number of documents. My task is get predictive performance of these reviews with pre-processing of the data and without pre-processing. But there is problem, in lists documents and documents2 I have the same documents ...
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How can I see the assembly code for a C++ program?

How can I see the assembly code for a C++ program? 14 Answers 14 ...