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When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
... end up being very similar in practice because they both are event message based: See my answer to RabbitMQ vs Akka.
If you're going to code only for the JVM then Akka is probably a good choice. Otherwise I would use RabbitMQ.
Also if you're a Scala developer, then Akka should be a no-brainer. How...
cannot load such file — zlib even after using rvm pkg install zlib
...install 1.9.3
[Edit] As commenter @chrisfinne mentions, on CentOS/RedHat based systems:
$ sudo yum install zlib-devel
$ rvm reinstall 1.9.3
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How to use a variable to specify column name in ggplot
...string that the variable contains, using sym()(which is almost the same as base aliases as.name() / as.symbol()), and unquote it using !!
Simulating OP's data we can do :
library(tidyverse)
rates.by.groups <- data.frame(
name = LETTERS[1:3],
rate = 1:3,
mjr = LETTERS[c(4,4,5)],
gender =...
jQuery UI DatePicker to show month year only
...="screen" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/base/jquery-ui.css">
<script type="text/javascript">
$(function() {
$('.date-picker').datepicker( {
changeMonth: true,
changeYear: true,
showButtonPanel: tr...
How to list the files inside a JAR file?
...it outside your VM. Besides even inside your own application, your locking based on filenames can be easily bypassed. With this things it is better to rely on OS synchronization mechanisms, like file locking.
– Espinosa
Apr 5 '17 at 9:27
...
How to sort a collection by date in MongoDB?
.... You can read more on what callbacks are and how they work to learn event based programming.
– Sushant Gupta
Nov 17 '15 at 14:20
...
How can I determine if a .NET assembly was built for x86 or x64?
...Microsoft.GLEE
Version : 1.0.0.0
CultureInfo :
CodeBase : file:///C:/projects/powershell/BuildAnalyzer/...
EscapedCodeBase : file:///C:/projects/powershell/BuildAnalyzer/...
ProcessorArchitecture : MSIL
Flags : PublicKey
HashAlgorithm ...
Difference between constituency parser and dependency parser
...onstituency parser, and then, if needed, it performs a deterministic (rule-based) transformation on the constituency parse tree to convert it into a dependency tree.
More can be found here:
http://en.wikipedia.org/wiki/Phrase_structure_grammar
http://en.wikipedia.org/wiki/Dependency_grammar
...
What is “String args[]”? parameter in main method Java
...
The following answer is based my understanding & some test.
What is String[] args?
Ans- >
String[] -> As We know this is a simple String array.
args -> is the name of an array it can be anything (e.g. a, ar, argument, param, par...
How can I add or update a query string parameter?
...h another that I found to replace/update/remove the querystring parameters based on the users input and taking the urls anchor into consideration.
Not supplying a value will remove the parameter, supplying one will add/update the parameter. If no URL is supplied, it will be grabbed from window.loca...