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Has anyone actually implemented a Fibonacci-Heap efficiently?
...of you ever implemented a Fibonacci-Heap ? I did so a few years back, but it was several orders of magnitude slower than using array-based BinHeaps.
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What does SQL clause “GROUP BY 1” mean?
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It means to group by the first column regardless of what it's called. You can do the same with ORDER BY.
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How do I programmatically “restart” an Android app?
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You can use PendingIntent to setup launching your start activity in the future and then close your application
Intent mStartActivity = new Intent(context, StartActivity.class);
int mPendingIntentId = 123456;
PendingIntent mPendingIntent = PendingIntent.getActivity(context, mPendingInt...
Getting realtime output using subprocess
I am trying to write a wrapper script for a command line program (svnadmin verify) that will display a nice progress indicator for the operation. This requires me to be able to see each line of output from the wrapped program as soon as it is output.
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How do you serve a file for download with AngularJS or Javascript?
...ontent ], { type : 'text/plain' });
$scope.url = (window.URL || window.webkitURL).createObjectURL( blob );
in order to enable the URL:
app = angular.module(...);
app.config(['$compileProvider',
function ($compileProvider) {
$compileProvider.aHrefSanitizationWhitelist(/^\s*(https?|ftp|...
Getting “A potentially dangerous Request.Path value was detected from the client (&)”
... dangerous Request.Path value was detected from the client (&)" . The site is written with ASP.Net MVC 3 (in C#) and is running on IIS 7.5.
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How does std::move() transfer values into RValues?
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We start with the move function (which I cleaned up a little bit):
template <typename T>
typename remove_reference<T>::type&& move(T&& arg)
{
return static_cast<typename remove_reference<T>::type...
REST response code for invalid data
...t choice in both cases. If you want to further clarify the error you can either change the Reason Phrase or include a body to explain the error.
412 - Precondition failed is used for conditional requests when using last-modified date and ETags.
403 - Forbidden is used when the server wishes to pr...
Count the number of occurrences of a character in a string in Javascript
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I have updated this answer. I like the idea of using a match better, but it is slower:
console.log(("str1,str2,str3,str4".match(/,/g) || []).length); //logs 3
console.log(("str1,str2,str3,str4".match(new RegExp("str", "g")) || []).length); //logs 4
jsfiddle
Use a regular expression literal if...
How to run a function when the page is loaded?
... want to run a function when the page is loaded, but I don’t want to use it in the <body> tag.
8 Answers
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