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Help with C# generics error - “The type 'T' must be a non-nullable value type”
...r is telling you about Nullable<T> and not your function or the call site of that function -- it's the Nullable class that is the root cause of the error, so this is actually more helpful that if the compiler just pointed to your function and said "this ain't right, fix it!" (Imagine if Coales...
How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
...to keep track of which pages they are on and their last access date to the site. I then have a cron that runs every 15 minutes to DELETE old records.
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What are unit tests, integration tests, smoke tests, and regression tests?
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Can the site be pinged at all - suitably enough, a service called Binary Canary exists.
– Dan Dascalescu
Feb 23 '14 at 23:53
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What's the point of Spring MVC's DelegatingFilterProxy?
...e configuration.
Here is the link http://docs.spring.io/spring-security/site/docs/3.0.x/reference/appendix-namespace.html
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How to get row from R data.frame
...the row match the vector you wanted
x[1,]==y
This page (from this useful site) has good information on indexing like this.
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Maintain aspect ratio of div but fill screen width and height in CSS?
I have a site to put together that has a fixed aspect ratio of approximately 16:9 landscape, like a video.
9 Answers
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IIS7 Overrides customErrors when setting Response.StatusCode?
... my case, I'm using a custom 404 to send users to different sections of my site, so I don't want a 404 status code returned unless it actually is a dead page.
Anyway, that's how I did it. Hope that helps someone.
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Should JAVA_HOME point to JDK or JRE?
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Diagram on this site shows the relationship between JDK and JRE. docs.oracle.com/javase/8/docs
– andrybak
Apr 13 '17 at 11:19
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Exposing database IDs - security risk?
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It depends on what the IDs stand for.
Consider a site that for competitive reason don't want to make public how many members they have but by using sequential IDs reveals it anyway in the URL: http://some.domain.name/user?id=3933
On the other hand, if they used the login n...
What's “tools:context” in Android layout files?
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According to the Android Tools Project Site:
tools:context
This attribute is typically set on the root element in a layout XML file, and records which activity the layout is associated with (at designtime, since obviously a layout can be used by more than one ...