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Is it possible only to declare a variable without assigning any value in Python?
... breaks if a valid value for val is "false" e.g., zero or empty. Use is to test whether a value is None.
– jfs
Dec 19 '13 at 2:14
1
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How do I change tab size in Vim?
...re)
set tabstop=4
set shiftwidth=4
set expandtab
then save file and test
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spring boot default H2 jdbc connection (and H2 console)
...st use the Application.java part that you put, then connect to jdbc:h2:mem:testdb with a blank username and blank password. localhost:8082 works with this setup.
– Splaktar
Nov 26 '14 at 23:28
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Repository Pattern vs DAL
...n them without ever having to do any database access,
and, of course, unit-test them independent of actual Repository implementations.
I may even go so far and state that unless the Repository pattern is used together with the Specification pattern, it's not really "Repository," but a DAL. A contr...
When is layoutSubviews called?
...anged. I think the calling of layoutSubviews is just a side effect of your testing. In some cases layoutSubviews will not get called when a subviews bounds change. Please check the answer of frogcjn, because his anwser is based on documentation by Apple instead of just experiments.
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How can I get this ASP.NET MVC SelectList to work?
...SelectListItem{ Text="three", Value="3"}
}, "Text", "Value", "2" );
(not tested this, but I had the same problem)
then the 2nd option will get the selected="selected" attribute.
That looks like good old DataSets ;-)
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How to do a regular expression replace in MySQL?
...xample execution:
mysql> select regex_replace('[^a-zA-Z0-9\-]','','2my test3_text-to. check \\ my- sql (regular) ,expressions ._,');
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snprintf and Visual Studio 2010
...;
}
}
}
else { *strp = 0; }
return(r);
}
Usage (part of test.c provided by Insane Coding):
#include <stdio.h>
#include <stdlib.h>
#include "asprintf.h"
int main()
{
char *s;
if (asprintf(&s, "Hello, %d in hex padded to 8 digits is: %08x\n", 15, 15) != -1)
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HTML Form: Select-Option vs Datalist-Option
...nternal pages where I know with a 100% certainty that the users have the latest Chrome or Firefox, and will not try to submit bogus values. For any other case, it's hard to recommend the use of <datalist> due to very poor browser support.
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How do I count the number of occurrences of a char in a String?
...r answer and what I know all ways to do this using a one-liner:
String testString = "a.b.c.d";
1) Using Apache Commons
int apache = StringUtils.countMatches(testString, ".");
System.out.println("apache = " + apache);
2) Using Spring Framework's
int spring = org.springframework.util.StringU...