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How to install a specific version of a ruby gem?
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ruby | 1:1.9.3 | http://ftp.uk.debian.org/debian/ wheezy/main amd64 Packages
ruby | 4.5 | http://ftp.uk.debian.org/debian/ squeeze/main amd64 Packages
Then install it:
$ sudo apt-get install ruby=1:1.9.3
To check what's the current version, run:
$ gem --version # Check f...
How to sort a dataframe by multiple column(s)
... Easy enough: dd[ order(-dd[,4], dd[,1]), ], but can't use with for name-based subsetting.
– Dirk Eddelbuettel
Oct 21 '12 at 14:34
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#pragma pack effect
...it on a 7 byte boundary will hurt performance. But putting it on a 16, 32, 64 or 4096 byte boundary buys you nothing above what the 8 byte boundary already gave you. You'll get the same performance from the CPU, while getting much worse cache utilization for the reasons outlined in that post.
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Is there a limit to the length of HTML attributes?
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HTML5 is not an SGML-based language.
– William Brendel
Sep 30 '09 at 5:03
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Hiding user input on terminal in Linux script
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I've got it. My FreeBSD test was based on the code copied and pasted from your original mistaken edit of lesmana's post, which contains one important difference: you had been passing read a -d ''. When I retried it later on Linux I used the reposted version....
Client to send SOAP request and receive response
...etworkCredential(username, password, domain);
– Data-Base
Jan 25 '11 at 10:22
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@hamish: this is ...
What is the difference between instanceof and Class.isAssignableFrom(…)?
... performance:
isInstance
instanceof (+ 0.5%)
isAssignableFrom (+ 2.7%)
Based on a benchmark of 2000 iterations on JAVA 8 Windows x64, with 20 warmup iterations.
In theory
Using a soft like bytecode viewer we can translate each operator into bytecode.
In the context of:
package foo;
public c...
What are naming conventions for MongoDB?
...asz NurkiewiczTomasz Nurkiewicz
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Chrome Dev Tools - “Size” vs “Content”
...ritten as KB. It would be better if they reported it either in ISO format (base 10) or write it as KiB/MiB.
– okdewit
Jun 15 '16 at 13:43
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AngularJS UI Router - change url without reloading state
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+100
Simply ...