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How do I get the object if it exists, or None if it does not exist?
When I ask the model manager to get an object, it raises DoesNotExist when there is no matching object.
18 Answers
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Is there a TRY CATCH command in Bash
...terminal app has been installed. I want to use a TRY/CATCH command to do this unless there is a neater way.
14 Answers
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How do search engines deal with AngularJS applications?
I see two issues with AngularJS application regarding search engines and SEO:
15 Answers
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How do I check if a variable exists?
I want to check if a variable exists. Now I'm doing something like this:
11 Answers
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Bubble Sort Homework
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To explain why your script isn't working right now, I'll rename the variable unsorted to sorted.
At first, your list isn't yet sorted. Of course, we set sorted to False.
As soon as we start the while loop, we assume that the list is already sorted. T...
Covariance and contravariance real world example
...uitively, allows you to use a more generic type, where a more derived type is specified.
See also Covariance and Contravariance in Generics on MSDN.
Classes:
public class Person
{
public string Name { get; set; }
}
public class Teacher : Person { }
public class MailingList
{
public...
Use of Initializers vs Constructors in Java
...ned and I use them in the same manner. If you have a static variable that is to be initialized when the class is loaded, then a static initializer is the way to go, especially as it allows you to do a complex initialization and still have the static variable be final. This is a big win.
I find "i...
Can you split a stream into two streams?
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Not exactly. You can't get two Streams out of one; this doesn't make sense -- how would you iterate over one without needing to generate the other at the same time? A stream can only be operated over once.
However, if you want to dump them into a list or something, you could ...
What is the difference between an Azure Web Site and an Azure Web Role
...tes):
Ability to run elevated startup scripts to install apps, modify registry settings, install performance counters, fine-tune IIS, etc.
Ability to split an app up into tiers (maybe Web Role for front end, Worker Role for backend processing) and scale independently
Ability to RDP into your VM fo...
Sort points in clockwise order?
Given an array of x,y points, how do I sort the points of this array in clockwise order (around their overall average center point)? My goal is to pass the points to a line-creation function to end up with something looking rather "solid", as convex as possible with no lines intersecting.
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