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What is tail recursion?
...return x;
} else {
return x + recsum(x - 1);
}
}
If you called recsum(5), this is what the JavaScript interpreter would evaluate:
recsum(5)
5 + recsum(4)
5 + (4 + recsum(3))
5 + (4 + (3 + recsum(2)))
5 + (4 + (3 + (2 + recsum(1))))
5 + (4 + (3 + (2 + 1)))
15
Note how every recur...
How can I Remove .DS_Store files from a Git repository?
...
It's really trivial, but using -exec will launch git-rm once for every .DS_Store file, while xargs will put all the paths on one command line. Mostly I prefer xargs because I don't have to worry about escaping a lot of special char...
ASP MVC in IIS 7 results in: HTTP Error 403.14 - Forbidden
... someone:
After converting my app to MVC 4 with .NET framework 4.5 and installing the framework on my server with IIS 7.0 I encountered the same 'forbidden' error mentioned in the question. I tried all options described above to no avail, when I noticed the
<system.webServer>
<modules run...
Apply style ONLY on IE
... 2017
Depending on the environment, conditional comments have been officially deprecated and removed in IE10+.
Original
The simplest way is probably to use an Internet Explorer conditional comment in your HTML:
<!--[if IE]>
<style>
.actual-form table {
width: 100%;
...
Determining 32 vs 64 bit in C++
...esentation. I prefer ENVIRONMENT64 / ENVIRONMENT32. Then I find out what all of the major compilers use for determining if it's a 64 bit environment or not and use that to set my variables.
// Check windows
#if _WIN32 || _WIN64
#if _WIN64
#define ENVIRONMENT64
#else
#define ENVIRONMENT32
#endif...
Handling warning for possible multiple enumeration of IEnumerable
...
The problem with taking IEnumerable as a parameter is that it tells callers "I wish to enumerate this". It doesn't tell them how many times you wish to enumerate.
I can change the objects parameter to be List and then avoid the possible multiple enumeration but then I don't get the highes...
Time complexity of Sieve of Eratosthenes algorithm
...oose upper-bound is n(1+1/2+1/3+1/4+1/5+1/6+…1/n) (sum of reciprocals of all numbers up to n), which is O(n log n): see Harmonic number. A more proper upper-bound is n(1/2 + 1/3 + 1/5 + 1/7 + …), that is sum of reciprocals of primes up to n, which is O(n log log n). (See here or here.)
The "find...
How to remove item from list in C#?
...== 2);
resultList.Remove(itemToRemove);
When you are not sure the item really exists you can use SingleOrDefault. SingleOrDefault will return null if there is no item (Single will throw an exception when it can't find the item). Both will throw when there is a duplicate value (two items with the s...
postgresql list and order tables by size
How can I list all the tables of a PostgreSQL database and order them by size ?
7 Answers
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Disable ONLY_FULL_GROUP_BY
I accidentally enabled ONLY_FULL_GROUP_BY mode like this:
26 Answers
26
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