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Quit and restart a clean R session from within R?
... with the command bellow:
install.packages("RDCOMClient", repos = "http://www.omegahat.net/R")
The code to simulate the keypresses within RStudio (Windows 10) are:
library(RDCOMClient)
wsh <- COMCreate("Wscript.Shell")
wsh$SendKeys("^+{F10}")
In the last line in the code above, the 'ctrl...
Can you have multiple $(document).ready(function(){ … }); sections?
...eadability. Other than that , it's perfectly legal. See the below:
http://www.learningjquery.com/2006/09/multiple-document-ready
Try this out:
$(document).ready(function() {
alert('Hello Tom!');
});
$(document).ready(function() {
alert('Hello Jeff!');
});
$(document).ready(function() {
...
AngularJS - Trigger when radio button is selected
...alue) {
console.log(value);
}
Here is the jsFiddle: http://jsfiddle.net/ZPcSe/5/
2) Watching the model for changes. This doesn't require anything special on the input level:
<input type="radio" ng-model="value" value="foo">
but in a controller one would have:
$scope.$watch('value',...
How to load JAR files dynamically at Runtime?
...ct.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
/**
* Useful class for dynamically changing the classpath, adding classes during runtime.
*/
public class ClasspathHacker {
/**
* Parameters of the method to add an URL to...
How can I close a Twitter Bootstrap popover with a click from anywhere (else) on the page?
...ideAllPopovers();
isVisible = false;
});
});
http://jsfiddle.net/AFffL/539/
The only caveat is that you won't be able to open 2 popovers at the same time. But I think that would be confusing for the user, anyway :-)
...
How can I listen to the form submit event in javascript?
...rence
<iframe width="100%" height="100%" src="http://jsfiddle.net/DerekL/wnbo1hq0/show" frameborder="0"></iframe>
AngularJS (1.x)
<form ng-submit="callback()">
$scope.callback = function(){ /*...*/ };
Very straightforward, where $scope is the scope provided by...
How do I read any request header in PHP
... put every header into the $_SERVER variable? The PHP documentation at php.net/manual/en/reserved.variables.server.php is evasive about what we can be sure will be in there.
– Mark Amery
Oct 17 '13 at 9:38
...
How do I comment out a block of tags in XML?
...ns are not allowed and '?>' ends the processing instruction (see http://www.w3.org/TR/REC-xml/#sec-pi)
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What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
How can I check if a command exists in a shell script? [duplicate]
...
You can put any of them to your if clause. According to my tests (https://www.topbug.net/blog/2016/10/11/speed-test-check-the-existence-of-a-command-in-bash-and-zsh/), the 1st and 3rd method are recommended in bash and the 5th method is recommended in zsh in terms of speed.
...