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PHP prepend associative array with literal keys?
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@Cletus is spot on. Just to add, if the ordering of the elements in the input arrays are ambiguous, and you need the final array to be sorted, you might want to ksort:
$resulting_array = $array1 + $array2;
ksort($resulting_array);
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ContextLoaderListener or not?
...an configure the application context the other way around as well. E.g. in order to make the OpenEntityManagerInViewFilter work. Setup the ContextLoaderListener and then configure your DispatcherServlet with:
<servlet>
<servlet-name>spring-mvc</servlet-name>
<servlet-cl...
Convert string to number and add one
... @Justin Niessner, fair enough. Brackets can help clarify the order of execution too. +1 for a clear quick answer though. Just bet me to it.
– Chris Snowden
Oct 6 '11 at 13:07
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Visual Studio debugging “quick watch” tool and lambda expressions
... the following into the watch window
(Func<int>)(() => v2);
In order to properly execute this the debugger (or more appropriate the EE) would need to create a closure for variable v2. This is difficult but not impossible to do.
What really makes this a tough job for the EE though is ...
Django Admin - change header 'Django administration' text
...te_header, site_title, and index_title attributes on a custom AdminSite in order to easily change the admin site’s page title and header text. Create an AdminSite subclass and hook your instance into your URLconf:
admin.py:
from django.contrib.admin import AdminSite
from django.utils.translation...
How to dynamically create CSS class in JavaScript and apply?
...act, it uses JSS (CSS described by JSON), but it's quite easy to handle in order to generate dynamic css stylesheets.
$.injectCSS({
"#test": {
height: 123
}
});
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Apache Spark: The number of cores vs. the number of executors
... @zeodtr pwilmot is correct - you need 2-4 tasks MINIMUM in order to utilize the full potential of your cores. Put it this was - I usually use at least 1000 partitions for my 80 core cluster.
– samthebest
Jul 11 '14 at 16:35
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Convert two lists into a dictionary
...formance review:
In 64 bit Python 3.8.2 provided by Nix, on Ubuntu 16.04, ordered from fastest to slowest:
>>> min(timeit.repeat(lambda: dict(zip(keys, values))))
0.6695233230129816
>>> min(timeit.repeat(lambda: {k: v for k, v in zip(keys, values)}))
0.6941362579818815
>>&g...
Why return NotImplemented instead of raising NotImplementedError
...otImplemented, interpreter runs the Reflection Function but on the flipped order of input arguments.
You can find detailed examples here
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Boolean method naming readability
...sting()" or "DoesUserExist()", which follows English natural language word order rules for straight-forward questions.
– Oskar Berggren
Aug 15 '16 at 14:49
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