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When to use static classes in C# [duplicate]
...of the functionality is the same, but we have to change a couple of parts nonetheless. Had it not been a static method, we could make a derivate class and change the method contents as needed. As it's a static method, we can't. Sure, if we just need to add functionality either before or after the ol...
Is there ever a time where using a database 1:1 relationship makes sense?
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A 1:1 relationship typically indicates that you have partitioned a larger entity for some reason. Often it is because of performance reasons in the physical schema, but it can happen in the logic side as well if a large chunk of the data is expected to be "unknown" at the same time (i...
Python None comparison: should I use “is” or ==?
My editor warns me when I compare my_var == None , but no warning when I use my_var is None .
3 Answers
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How do I iterate over a JSON structure? [duplicate]
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Taken from jQuery docs:
var arr = [ "one", "two", "three", "four", "five" ];
var obj = { one:1, two:2, three:3, four:4, five:5 };
jQuery.each(arr, function() {
$("#" + this).text("My id is " + this + ".");
return (this != "four"); // will stop running to sk...
How to Find And Replace Text In A File With C#
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@Alexander Right. One chunk ends with "...som", and the next begins with "e text...". Makes it a much more complicated problem.
– djv
May 16 '16 at 20:11
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What does a tilde do when it precedes an expression?
...1 1111 1111 1111 1111 1110
So what is the use of it, then? When might one ever use it?
It has a quite a few uses. If you're writing low level stuff, it's handy. If you profiled your application and found a bottleneck, it could be made more performant by using bitwise tricks (as one possible t...
How to select unique records by SQL
...R()
In the Common Table Expression (CTE), select the ROW_NUMBER(), partitioned by the group column and ordered in the desired order. Then SELECT only the records that have ROW_NUMBER() = 1:
WITH CTE AS (
SELECT *
,row_number() OVER(PARTITION BY word, num ORDER BY id) AS row_num
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Where to host an Open Source Project: CodePlex, Google Code, SourceForge? [closed]
...e Adware). Avoid at all costs. GitHub is as of now still the most popular one, although there are alternatives (e.g., BitBucket offers unlimited private repos for free for up to 5 users.)
It's crazy how much the landscape changed in the past few years, and if you're reading this in the future, may...
Ruby on Rails: how do I sort with two columns using ActiveRecord?
I want to sort by two columns, one is a DateTime ( updated_at ), and the other is a Decimal (Price)
7 Answers
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What's the difference between RouteLink and ActionLink in ASP.NET MVC?
...only implement the fastest. But people rather use the fancy lambda slowest one.
– Robert Koritnik
Oct 21 '09 at 21:10
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