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When & why to use delegates? [duplicate]
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public double eval(double x) {
return /* some_result */ ;
}
}
// etc
Then to use them in our Gauss3 method, we need to invoke it as follows:
double res1 = Gauss3(new MyFunc1(), -1, 1, 16);
double res2 = Gauss3(new MyFunc2(), 0, Math.PI, 16);
And Gauss3 needs to do the look like the fo...
Dynamic Sorting within SQL Stored Procedures
...elds in your mySort column, reverse the order with math or date functions, etc.
Preferably though, I use my asp.net gridviews or other objects with build-in sorting to do the sorting for me AFTER retrieving the data fro Sql-Server. Or even if it's not built-in -- e.g., datatables, etc. in asp.net....
What's the difference between an element and a node in XML?
...eutrons and electrons, which in turn can be broken into quarks, neutrinos, etc. It's better to understand what a 'node' means in graph theory, and then you'll understand why the XML designers chose that name (the DOM is just a hierarchical graph).
– Les Hazlewood
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What is the correct way to start a mongod service on linux / OS X?
... don't want/need launchctl, you can just run:
mongod --config /usr/local/etc/mongod.conf
==> Summary
???? /usr/local/Cellar/mongodb/3.0.6: 17 files, 159M
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Can I use Twitter Bootstrap and jQuery UI at the same time?
...rtino" at the bottom as my theme.
I installed them thus:
<head>
...etc...
<link rel="stylesheet" href="css/font-awesome.min.css">
<link rel="stylesheet" href="css/cupertino/jquery-ui-1.9.2.custom.min.css">
<link rel="stylesheet" href="css/bootstrap-3.3.7.min.css">
<!-- ...
Why does C++ rand() seem to generate only numbers of the same order of magnitude?
...rs between 0 and 9, 90 numbers between 10 and 99, 900 between 100 and 999, etc.
For a computationally efficient way to get a distribution with approximately logarithmic distribution, you want to right-shift your random number by a random number:
s = rand() & 31; // a random number between 0 an...
Disable a method in a ViewSet, django-rest-framework
...here is less chance of forgetting some of important methods OPTIONS, HEAD, etc
P.P.S.
by default DRF has http_method_names = ['get', 'post', 'put', 'patch', 'delete', 'head', 'options', 'trace']
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What are enums and why are they useful?
... even though they don't make much sense for the singleton: ord and values, etc. (There's actually a trickier simulation where Color extends Integer that will work with switch, but it's so tricky that it even more clearly shows why enum is a better idea.)
Thread safety
Thread safety is a potential...
Best way to create enum of strings?
...swer. You can't have any String that wouldn't be a valid Java identifier, etc.
– Mark Peters
Oct 20 '10 at 14:29
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What is the purpose of the “role” attribute in HTML?
...porting specs like HTML-AAM. Some of the new HTML5 elements (dialog, main, etc.) are even based on the original ARIA roles.
http://www.w3.org/TR/wai-aria/
There are a few primary reasons to use roles in addition to your native semantic element.
Reason #1. Overriding the role where no host language e...