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Cron and virtualenv
I am trying to run a Django management command from cron. I am using virtualenv to keep my project sandboxed.
9 Answers
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Comparing strings with == which are declared final in Java
...red to "string" will give you true, because string literals are interned.
From JLS §4.12.4 - final Variables:
A variable of primitive type or type String, that is final and initialized with a compile-time constant expression (§15.28), is called a constant variable.
Also from JLS §15.28 - C...
Where can I learn how to write C code to speed up slow R functions? [closed]
...y efficient) C code one can study, and CRAN has hundreds of packages, some from authors you trust. That provides real, tested examples to study and adapt.
But as Josh suspected, I lean more towards C++ and hence Rcpp. It also has plenty of examples.
Edit: There were two books I found helpful:
T...
Stacking Divs from Bottom to Top
...ppending div s to a div with a fixed height, the child divs will appear from top to bottom, sticking at the top border.
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Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
...[...Array(5).keys()];
=> [0, 1, 2, 3, 4]
Character iteration
String.fromCharCode(...[...Array('D'.charCodeAt(0) - 'A'.charCodeAt(0) + 1).keys()].map(i => i + 'A'.charCodeAt(0)));
=> "ABCD"
Iteration
for (const x of Array(5).keys()) {
console.log(x, String.fromCharCode('A'.charCode...
Inheriting from a template class in c++
...a is not a template class, but a class template. That is, it is a template from which classes can be generated. Area<int> is such a class (it's not an object, but of course you can create an object from that class in the same ways you can create objects from any other class). Another such clas...
Extract digits from a string in Java
I have a Java String object. I need to extract only digits from it. I'll give an example:
14 Answers
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How to stop C# console applications from closing automatically? [duplicate]
... the output before the console window closes. When the application is used from the command line no pause is needed, as the console window does not close after a command has finished.
– Jeppe Stig Nielsen
Aug 5 '14 at 21:36
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What is the difference between Amazon SNS and Amazon SQS?
...sages are NOT pushed to receivers. Receivers have to poll or pull messages from SQS. Messages can't be received by multiple receivers at the same time. Any one receiver can receive a message, process and delete it. Other receivers do not receive the same message later. Polling inherently introduces ...
Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
...h is coming in the imminent 2.8 release. Those familiar with the library from 2.7 will notice that the library, from a usage perspective, has changed little. For example...
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