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How do I clear the terminal screen in Haskell?
...ell command
:! cls under windows
:! clear under linux and OS X
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Is volatile expensive?
...volves a load from memory, i.e. the value can not be kept in a register across multiple volatile reads. To ensure that there is an atomic read the value is read from main memory into an MMX register movsd 0x6fb7b2f0(%ebp),%xmm0 making the read operation a single instruction (from the previous exam...
If unit testing is so great, why aren't more companies doing it? [closed]
... then -- I have no idea what our code coverage was like and I was writing most of the unit tests. Since then I've run into some companies that do lots of testing, but it's chair testing: relies on a person being there, has low repeatibility and low chance of catching bugs. The other attitude is: it ...
Java equivalent to Explode and Implode(PHP) [closed]
...!= split.length - 1) {
sb.append(" ");
}
}
String joined = sb.toString();
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How to get RGB values from UIColor?
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I posted some sample code in this question to get this working in non-RGB contexts: stackoverflow.com/questions/4700168/…
– Jesse Rusak
Jan 15 '11 at 15:28
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How to view files in binary from bash?
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...and it's preinstalled on Mac OS X and on Linux.
– Sridhar Sarnobat
Sep 5 '17 at 22:36
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Couldn't connect to server 127.0.0.1:27017
...or mongodb from http://docs.mongodb.org/manual/tutorial/install-mongodb-on-os-x/ and I had the same error as you only when I ran mongo before actually running the mongo process with mongod. I thought installing mongodb would also launch it but you need to launch it manually with mongod before you do...
select * vs select column
If I just need 2/3 columns and I query SELECT * instead of providing those columns in select query, is there any performance degradation regarding more/less I/O or memory?
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Excluding directory when creating a .tar.gz file
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I get tar: Error exit delayed from previous errors. in macos
– prayagupd
Jun 28 '18 at 23:32
Getting ...
iPhone Simulator location
...hone Simulator/
You can browse simulator files from that directory in Mac OS X.
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