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What JSON library to use in Scala? [closed]
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There are quite a variety of alternatives. I list them in no particular order, with notes:
parsing.json.JSON - Warning this library is available only up to Scala version 2.9.x (removed in newer versions)
spray-json - Extracted from the Spray project
Jerkson ± - Warning a nice library (built on...
Why is exception handling bad?
...each individual method to get it right and roll back when that happens, or order your operations so throws don't effect object state. If you get it wrong (and it's easy to make this kind of mistake), then the caller ends up seeing your intermediate values.
Methods like RAII, which C++ programmers ...
What is the meaning of the term arena in relation to memory?
...ost importantly, it requires platform-specific knowledge to get the memory ordering right. I use "magic" for things that can either not be written portably by the user at all (like an efficient mutex, or tcmalloc, or the type name of a lambda), or only with extreme heroics (like std::function); I do...
How to create an AVD for Android 4.0
...s named "ARM EABI v7a System Image".
This is what you need to download in order to create an Android 4.0 virtual device:
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PHP Session Fixation / Hijacking
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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How to configure Mac OS X term so that git has color? [closed]
...want to modify it please note that it's important to escape color codes in order to avoid line feed problems in long lines.
# Setting GIT prompt
c_cyan=`tput setaf 6`
c_red=`tput setaf 1`
c_green=`tput setaf 2`
c_sgr0=`tput sgr0`
branch_color ()
{
if git rev-parse --git-dir >/dev/null 2>...
MySQL select 10 random rows from 600K rows fast
... to gaps, to non-uniform with gaps.
http://jan.kneschke.de/projects/mysql/order-by-rand/
For most general case, here is how you do it:
SELECT name
FROM random AS r1 JOIN
(SELECT CEIL(RAND() *
(SELECT MAX(id)
FROM random)) AS id)
AS r2
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What are FTL files
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Is it possible to view RabbitMQ message contents directly from the command line?
...RabbitMQ queue to local files and requeuing the messages in their original order.
Example usage (to dump the first 50 messages of queue incoming_1):
rabbitmq-dump-queue -url="amqp://user:password@rabbitmq.example.com:5672/" -queue=incoming_1 -max-messages=50 -output-dir=/tmp
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Sort an Array by keys based on another Array?
...e this? How would you go about writing a function? Here is an example. The order is the most important thing.
15 Answers
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