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What is the @Html.DisplayFor syntax for?
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what happens if you have two models with the same name?
– halivingston
Jun 11 '14 at 3:53
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Collection versus List what should you use on your interfaces?
... stackoverflow.com/a/398988/2632991 Here is a real good post too, about what is the difference between Collections and Lists.
– El Mac
Nov 24 '16 at 8:34
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What is the (function() { } )() construct in JavaScript?
I used to know what this meant, but I'm struggling now...
27 Answers
27
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php is null or empty?
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What you're looking for is:
if($variable === NULL) {...}
Note the ===.
When use ==, as you did, PHP treats NULL, false, 0, the empty string, and empty arrays as equal.
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Delete directory with files in it?
I wonder, what's the easiest way to delete a directory with all its files in it?
33 Answers
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What does OSGi solve?
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what benefits does OSGi's component system provide you? Well, Here is quite a list:
Reduced Complexity - Developing with OSGi technology means developing bundles: the OSGi components. Bundles are modules. They hide their inte...
How to send a JSON object over Request with Android?
... Here's a snippet of code I used to send an HTTP POST.
I don't understand what sending the object in a variable named "jason" has to do with anything. If you're not sure what exactly the server wants, consider writing a test program to send various strings to the server until you know what format i...
What is the Python equivalent of static variables inside a function?
What is the idiomatic Python equivalent of this C/C++ code?
26 Answers
26
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When should I use the HashSet type?
... it's a set. The only things you can do with a single set is to establish what its members are, and to check whether an item is a member.
Asking if you can retrieve a single element (e.g. set[45]) is misunderstanding the concept of the set. There's no such thing as the 45th element of a set. Ite...
How to show a GUI message box from a bash script in linux?
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I believe Zenity will do what you want. It's specifically designed for displaying GTK dialogs from the command line, and it's available as an Ubuntu package.
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