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How to create a database from shell command?
...tedb in PostgreSQL or any other solution that would allow me to create database with a help of a shell command. Any hints?
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What is recursion and when should I use it?
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Recursion is a method of solving problems based on the divide and conquer mentality.
The basic idea is that you take the original problem and divide it into smaller (more easily solved) instances of itself, solve those smaller instances (usually by using the same alg...
Remove array element based on object property
I have an array of objects like so:
14 Answers
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Why is “copy and paste” of code dangerous? [closed]
...ocument them? Which of them do I need now?"
"Oh, yeah, this code uses Code Base Y. Guess I need to [choose one: copy all of Code Base Y into my new project / spend a day extricating the one function I want from Code Base Y / spend a week extricating the one function I want from Code Base Y]."
"I cop...
Why can't the C# constructor infer type?
...al, but the C# compiler does not reason "Giraffe and Turtle share a common base type Animal, therefore it is the best candidate for T".
– Eric Lippert
Mar 16 '12 at 22:03
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differentiate null=True, blank=True in django
When we add a database field in django we generally write:
18 Answers
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ObservableCollection Doesn't support AddRange method, so I get notified for each item added, besides
...''' <remarks></remarks>
Public Sub New()
MyBase.New()
End Sub
''' <summary>
''' Initializes a new instance of the System.Collections.ObjectModel.ObservableCollection(Of T) class that contains elements copied from the specified collection....
Overriding a Rails default_scope
If I have an ActiveRecord::Base model with a default-scope:
9 Answers
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What is the difference between JSF, Servlet and JSP?
...t, such as doGet() and doPost().
JSF (JavaServer Faces)
JSF is a component based MVC framework which is built on top of the Servlet API and provides components via taglibs which can be used in JSP or any other Java based view technology such as Facelets. Facelets is much more suited to JSF than JSP....
Difference Between ViewResult() and ActionResult()
...s an HTTP redirection to a URL that is determined by the
routing engine, based on given route data
JsonResult - Serializes a given ViewData object to JSON format
JavaScriptResult - Returns a piece of JavaScript code that can be executed on the client
ContentResult - Writes content to the response ...