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Insert, on duplicate update in PostgreSQL?
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@FrançoisBeausoleil: the chance of a race condition is much smaller than with the "try/handle exception" approach
– a_horse_with_no_name
Feb 21 '12 at 15:32
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How do you create an asynchronous method in C#?
... To support such a paradigm with Tasks, we need a way to retain the Task façade and the ability to refer to an arbitrary asynchronous operation as a Task, but to control the lifetime of that Task according to the rules of the underlying infrastructure that’s providing the asynchrony, and to do so...
UTF-8: General? Bin? Unicode?
I'm trying to figure out what collation I should be using for various types of data. 100% of the content I will be storing is user-submitted.
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List comprehension rebinds names even after scope of comprehension. Is this right?
...s scope affecting the surrounding scope.
– Felipe Gonçalves Marques
Sep 28 '18 at 10:25
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Best way to check if a URL is valid
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You can use a native Filter Validator
filter_var($url, FILTER_VALIDATE_URL);
Validates value as URL (according to » http://www.faqs.org/rfcs/rfc2396), optionally with required components. Beware a valid URL may not specify the HTTP protocol http:// so further validatio...
Laravel: Get base url
...t the answer seems quite hard to come by. In Codeigniter, I could load the url helper and then simply do
17 Answers
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Python : List of dict, if exists increment a dict value, if not append a new dict
...ary, this is easy:
# This example should work in any version of Python.
# urls_d will contain URL keys, with counts as values, like: {'http://www.google.fr/' : 1 }
urls_d = {}
for url in list_of_urls:
if not url in urls_d:
urls_d[url] = 1
else:
urls_d[url] += 1
This code f...
How do I find the absolute url of an action in ASP.NET MVC?
...tension methods. It's already baked in, just not in a very intuitive way.
Url.Action("Action", null, null, Request.Url.Scheme);
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How to use sessions in an ASP.NET MVC 4 application?
...c field on Employee is same for each instance.
– Gökçer Gökdal
Aug 8 '16 at 4:44
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Manipulate a url string by adding GET parameters
I want to add GET parameters to URLs that may and may not contain GET parameters without repeating ? or & .
15 Answe...