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How to merge 2 List and removing duplicate values from it in C#
...eturns all the elements
in the input sequences including
duplicates.
List<int> list1 = new List<int> { 1, 12, 12, 5};
List<int> list2 = new List<int> { 12, 5, 7, 9, 1 };
List<int> ulist = list1.Union(list2).ToList();
// ulist output : 1, 12, 5, 7, 9
...
What are the pros and cons of performing calculations in sql vs. in your application
...queries. For procedural needs you can choose from a variety of server-side script languages: tcl, python, perl and many more. Mostly I use PL/pgSQL, though.
Worst case scenario would be to repeatedly go to the server for every single row of a larger set. (That would be like shipping one ton of ore ...
How to fix the datetime2 out-of-range conversion error using DbContext and SetInitializer?
... greater than or equal to SqlDateTime.MinValue (January 1, 1753) - by default Start equals DateTime.MinValue (January 1, 0001).
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Why does Python print unicode characters when the default encoding is ASCII?
...proper encoding from the environment, only then does it revert to its default, ASCII.
For example, I use a bash shell which encoding defaults to UTF-8. If I start Python from it, it picks up and use that setting:
$ python
>>> import sys
>>> print sys.stdout.encoding
UTF-8
Let'...
Why should I use var instead of a type? [duplicate]
...function, that function needs to be refactored as it is clearly too difficult to understand. Any time that is saved by a developer on anything has to be picked up by another developer( usually a junior ) in the future, who has to spend more time figuring out what a piece of code actually does.
...
Django MEDIA_URL and MEDIA_ROOT
...e ensuring this is only used in Debug mode.
ORIGINAL answer for Django <= 1.6
Try putting this into your urls.py
from django.conf import settings
# ... your normal urlpatterns here
if settings.DEBUG:
# static files (images, css, javascript, etc.)
urlpatterns += patterns('',
...
Difference between Repository and Service Layer?
... of writing
var context = new DatabaseContext();
return CreateObjectQuery<Type>().Where(t => t.ID == param).First();
to get a single item from database, you use repository interface
public interface IRepository<T>
{
IQueryable<T> List();
bool Create(T item);
bool...
Which is preferred: Nullable.HasValue or Nullable != null?
I always used Nullable<>.HasValue because I liked the semantics. However, recently I was working on someone else's existing codebase where they used Nullable<> != null exclusively instead.
...
How do I get the file extension of a file in Java?
...enameUtils.getExtension("bar.exe"); // returns "exe"
Maven dependency:
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
Gradle Groovy DSL
implementation 'commons-io:commons-...
How to count the number of occurrences of an element in a List
...
It was introduced in JDK 5 (although no one uses a version before that so it doesn't matter) docs.oracle.com/javase/8/docs/technotes/guides/collections/…
– Minion Jim
Mar 2 '19 at 15:49
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