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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
... prepare a little educational tool for SO which should help beginners (and intermediate) programmers to recognize and challenge their unwarranted assumptions in C, C++ and their platforms.
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Should I use int or Int32
In C#, int and Int32 are the same thing, but I've read a number of times that int is preferred over Int32 with no reason given. Is there a reason, and should I care?
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How can I verify if one list is a subset of another?
...lications. Basically the fact that one is a dict means you may not need to convert the static part to a set (you could check all(itertools.imap(dict.has_key, mylist)) with O(n) performance).
– Yann Vernier
May 18 '13 at 14:28
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What is the difference between const int*, const int * const, and int const *?
I always mess up how to use const int* , const int * const , and int const * correctly. Is there a set of rules defining what you can and cannot do?
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JQuery string contains check [duplicate]
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@RedSwan: you could convert the string to uppercase or lowercase and then do the comparison, problem solved.
– diggersworld
Nov 8 '14 at 9:40
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SQL SERVER: Get total days between two dates
...edure then you need to apply below code.
select (datediff(dd,'+CHAR(39)+ convert(varchar(10),@FromDate ,101)+
CHAR(39)+','+CHAR(39)+ convert(varchar(10),@ToDate ,101) + CHAR(39) +'))
Daysdiff
where @fromdate and @todate is Parameter of the SP
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How to change a string into uppercase
...t use
"string".upper()
where "string" is your string that you want to convert uppercase
for this question concern it will like this:
s.upper()
for making lowercase from uppercase string
just use
"string".lower()
where "string" is your string that you want to convert lowercase
for thi...
Remove all special characters from a string in R?
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Instead of using regex to remove those "crazy" characters, just convert them to ASCII, which will remove accents, but will keep the letters.
astr <- "Ábcdêãçoàúü"
iconv(astr, from = 'UTF-8', to = 'ASCII//TRANSLIT')
which results in
[1] "Abcdeacoauu"
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Double negation (!!) in javascript - what is the purpose? [duplicate]
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It casts to boolean. The first ! negates it once, converting values like so:
undefined to true
null to true
+0 to true
-0 to true
'' to true
NaN to true
false to true
All other expressions to false
Then the other ! negates it again. A concise cast to boolean, exactly equ...
The best node module for XML parsing [closed]
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You can try xml2js. It's a simple XML to JavaScript object converter. It gets your XML converted to a JS object so that you can access its content with ease.
Here are some other options:
libxmljs
xml-stream
xmldoc
cheerio – implements a subset of core jQuery for XML (and HTML)
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