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Heroku free account limited?
... see Heroku provides free account features, but I don't see any detail on bandwidth, disk spaces, requests?
4 Answers
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RabbitMQ and relationship between channel and connection
... a Channel are serialized, with only one thread being able to run a
command on the Channel at a time. Even so, applications should prefer
using a Channel per thread instead of sharing the same Channel across
multiple threads.
There is no direct relation between Channel and Queue. A Channel ...
What algorithm gives suggestions in a spell checker?
...mplement a spelling corrector. It's basicly a brute force approach trying candidate strings with a given edit distance. (Here are some tips how you can improve the spelling corrector performance using a Bloom Filter and faster candidate hashing.)
The requirements for a spell checker are weaker. You...
Determine the data types of a data frame's columns
I'm using R and have loaded data into a dataframe using read.csv() . How do I determine the data type of each column in the data frame?
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Java String - See if a string contains only numbers and not letters
I have a string that I load throughout my application, and it changes from numbers to letters and such. I have a simple if statement to see if it contains letters or numbers but, something isn't quite working correctly. Here is a snippet.
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How do CSS triangles work?
...ere're plenty of different CSS shapes over at CSS Tricks - Shapes of CSS and I'm particularly puzzled with a triangle:
20...
How do you add swap to an EC2 instance?
I'm currently running an ec2 micro instance and i've been finding that the instance occasionally runs out of memory.
10 Ans...
JSTL in JSF2 Facelets… makes sense?
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Introduction
JSTL <c:xxx> tags are all taghandlers and they are executed during view build time, while JSF <h:xxx> tags are all UI components and they are executed during view render time.
Note that from JSF's own <f:xxx> and <ui:xxx> tags only tho...
How to read from a file or STDIN in Bash?
...e following Perl script ( my.pl ) can read from either the file on the command line args or from STDIN:
15 Answers
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What does the servlet value signify
...ad-on-startup indicates that this servlet should be loaded (instantiated
and have its
init() called) on the startup of the Web application. The element content of this
element must be an integer indicating the order in which the servlet should be
loaded. If the value is a negative integer, o...