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In Python, using argparse, allow only positive integers
...still need to define an actual method that decides this for you:
def check_positive(value):
ivalue = int(value)
if ivalue <= 0:
raise argparse.ArgumentTypeError("%s is an invalid positive int value" % value)
return ivalue
parser = argparse.ArgumentParser(...)
parser.add_argu...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...onstrate breaking changes. The following is a tweaked testcase, which initially was used to demonstrate such a change, but now is used to test for C++0x or C++03.
struct X { };
struct Y { X x1, x2; };
struct A { static X B(int); };
typedef A B;
struct C : A {
using ::B::B; // (inheriting const...
How to declare a global variable in JavaScript?
...s available only in browsers. Could you edit you answer to make it work in all environments? See How to get the global object in JavaScript?
– Michał Perłakowski
Nov 30 '16 at 15:50
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SQL Server: What is the difference between CROSS JOIN and FULL OUTER JOIN?
... cross join produces a cartesian product between the two tables, returning all possible combinations of all rows. It has no on clause because you're just joining everything to everything.
A full outer join is a combination of a left outer and right outer join. It returns all rows in both tables t...
How can I make setInterval also work when a tab is inactive in Chrome?
...o get the elapsed time since the start instead of the end of the previous call. This is usually what you want when animating things. As it is now, if an execution of the interval function takes 15ms, elapsedTime will give 35ms (instead of 50ms which is the interval) next time it is called (when the ...
Define variable to use with IN operator (T-SQL)
... myColumn in (SELECT id FROM myIdTable WHERE id > 10)
2) Using dynamically concatenated TSQL
DECLARE @sql varchar(max)
declare @list varchar(256)
select @list = '1,2,3'
SELECT @sql = 'SELECT * FROM myTable WHERE myColumn in (' + @list + ')'
exec sp_executeSQL @sql
3) A possible third ...
difference between fork and branch on github
If I fork a project that's hosted on github. Do I fork all the branches? How do I know which branch my fork is based on? In other words which branch will be downloaded to my PC?
...
How to change the port of Tomcat from 8080 to 80?
...
1) Go to conf folder in tomcat installation directory
e.g. C:\Tomcat 6.0\conf\
2) Edit following tag in server.xml file
<Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/>
3) Change the port=8080 value to por...
Uninstall / remove a Homebrew package including all its dependencies
I have a Homebrew formula that I wish to uninstall/remove along with all its dependencies, skipping packages whom other packages depend upon (a.k.a. Cascading package removal in Package manager parlance).
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FileNotFoundException while getting the InputStream object from HttpURLConnection
...ck a response in form of xml string. The app is hosted on apache-tomcat locally.
7 Answers
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