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Convert UNIX epoch to Date object
I'm plotting and performing calculations on uniformly distributed time series. The timestamps are currently stored as integers representing the number of seconds since the UNIX epoch (e.g. 1352068320 ), but Date objects seem more appropriate for plotting. How can I do the conversion?
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Coalesce function for PHP?
...en.
The improvement over the mentioned ?: operator is, that the ?? also handles undefined variables without throwing an E_NOTICE.
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How do I split a string into an array of characters? [duplicate]
...ble, which means you can't set the value of a character using this method, and that it isn't supported by IE7 (if that still matters to you).
var s = "overpopulation";
console.log(s[3]); // logs 'r'
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java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
...nit GitHub team website (https://github.com/junit-team/junit/wiki/Download-and-Install), junit.jar and hamcrest-core.jar are both needed in the classpath when using JUnit 4.11.
Here is the Maven dependency block for including junit and hamcrest.
<dependency>
<groupId>junit</grou...
Convert HashBytes to VarChar
...ash of a string value in SQL Server 2005. I do this with the following command:
7 Answers
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MongoDB SELECT COUNT GROUP BY
... answered Apr 16 '14 at 17:39
Anand JayabalanAnand Jayabalan
9,00655 gold badges2828 silver badges4444 bronze badges
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How to call any method asynchronously in c#
...ibrary in .Net 4. It's much, much nicer than using BeginInvoke/EndInvoke, and gives a clean way to fire-and-forget for async jobs:
using System.Threading.Tasks;
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void Foo(){}
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new Task(Foo).Start();
If you have methods to call that take parameters, you can use a lambda to simplify the call...
Django templates: verbose version of a choice
... for the field, where 'FOO' is the name of the field.
Note: in case the standard FormPreview templates are not using it, then you can always provide your own templates for that form, which will contain something like {{ form.get_meal_display }}.
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Is there a better way to find out if a local git branch exists?
I am using the following command to find out if a local git branch with branch-name exists in my repository. Is this correct? Is there a better way?
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PHP array delete by value (not key)
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Using array_search() and unset, try the following:
if (($key = array_search($del_val, $messages)) !== false) {
unset($messages[$key]);
}
array_search() returns the key of the element it finds, which can be used to remove that element from ...