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Rails server says port already used, how to kill that process?
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708
Assuming you're looking to kill whatever is on port 3000 (which is what webrick normally uses),...
Child with max-height: 100% overflows parent
...explicit height for the parent, then the child knows it has to be at most 100% of that explicit height. That allows it to be constrained to the parent's height (while still maintaining its aspect ratio).
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What is the meaning of the term arena in relation to memory?
... For example:
char * arena = malloc(HUGE_NUMBER);
unsigned int current = 0;
void * my_malloc(size_t n) { current += n; return arena + current - n; }
The point is that you get full control over how the memory allocation works. The only thing outside your control is the single library call for th...
What is the maven-shade-plugin used for, and why would you want to relocate Java packages?
...one's pom.xml. I've never used maven-shade-plugin before (and I'm a Maven n00b) so I tried to understand the reason for using this and what it does.
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Difference between Node object and Element object?
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506
A node is the generic name for any type of object in the DOM hierarchy. A node could be one of...
Print text instead of value from C enum
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101
Enumerations in C are numbers that have convenient names inside your code. They are not strings...
Get url without querystring
....aspx?myvalue1=hello&myvalue2=goodbye");
string path = String.Format("{0}{1}{2}{3}", url.Scheme,
Uri.SchemeDelimiter, url.Authority, url.AbsolutePath);
Or you can use substring
string url = "http://www.example.com/mypage.aspx?myvalue1=hello&myvalue2=goodbye";
string path = url.Substr...
Redis command to get all available keys?
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answered Mar 9 '11 at 21:40
yojimbo87yojimbo87
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Efficient SQL test query or validation query that will work across all (or most) databases
...ir SQL connections for idleness. For example, the JDBC pooling library c3p0 has a property called preferredTestQuery , which gets executed on the connection at configured intervals. Similarly, Apache Commons DBCP has validationQuery .
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How can I do a case insensitive string comparison?
...ser["Username"],
StringComparison.OrdinalIgnoreCase) == 0
Use the following instead
String.Equals(x.Username, (string)drUser["Username"],
StringComparison.OrdinalIgnoreCase)
MSDN recommends:
Use an overload of the String.Equals method to test wheth...