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Cleanest way to get last item from Python iterator
...at's the best way of getting the last item from an iterator in Python 2.6? For example, say
14 Answers
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Javascript sort array by two fields
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Nice and clean! The only thing it only works for numbers.
– Afanasii Kurakin
Jul 24 '19 at 7:40
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Collection that allows only unique items in .NET?
... there a collection in C# that will not let you add duplicate items to it? For example, with the silly class of
7 Answers
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What is the fastest integer division supporting division by zero no matter what the result is?
...ntegral arithmetic and the use of condition flags are invented in hardware for this purpose. In general condition flags are only accessible in C through using idiom. That is why it so hard to make a portable multiple precision integer library in C without resorting to (inline) assembly. My guess is ...
Where can I get a list of Ansible pre-defined variables?
...ome pre-defined variables that we can use in playbooks and template files. For example, the host ip address is ansible_eth0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me?
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Pass an array of integers to ASP.NET Web API?
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You just need to add [FromUri] before parameter, looks like:
GetCategories([FromUri] int[] categoryIds)
And send request:
/Categories?categoryids=1&categoryids=2&categoryids=3
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How to detect if app is being built for device or simulator in Swift
In Objective-C we can know if an app is being built for device or simulator using macros:
20 Answers
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Reference - What does this error mean in PHP?
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Warning: Cannot modify header information - headers already sent
Happens when your script tries to send an HTTP header to the client but there already was output before, which resulted in headers to be already sent to the client.
This is an E_WARNING and ...
Does Python optimize tail recursion?
...l Calls (2009-04-27)
You can manually eliminate the recursion with a transformation like this:
>>> def trisum(n, csum):
... while True: # Change recursion to a while loop
... if n == 0:
... return csum
... n, csum = n - 1, csum + n # U...
How to escape a JSON string to have it in a URL?
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I was looking to do the same thing. problem for me was my url was getting way too long. I found a solution today using Bruno Jouhier's jsUrl.js library.
I haven't tested it very thoroughly yet. However, here is an example showing character lengths of the string output...