What is the difference between using a new thread and using a thread from the thread pool? What performance benefits are there and why should I consider using a thread from the pool rather than one I've explicitly created? I'm thinking specifically of .NET here, but general examples are fine. ...

...ce a surface can be rotated using the mouse when using matplotlib interactively. But how can I do this from a script? I found a lot of transforms in mpl_toolkits.mplot3d.proj3d but I could not find out how to use these for my purpose and I didn't find any example for what I'm trying to do. ...

In C#, is it possible to decorate an Enum type with an attribute or do something else to specify what the default value should be, without having the change the values? The numbers required might be set in stone for whatever reason, and it'd be handy to still have control over the default. ...

I want to know how to omit NA values in a data frame, but only in some columns I am interested in. 8 Answers ...

Since multiple inheritance is bad (it makes the source more complicated) C# does not provide such a pattern directly. But sometimes it would be helpful to have this ability. ...

I've read a lot about Node.js being fast and able to accommodate large amounts of load. Does anyone have any real world evidence of this vs other frameworks, particularly .Net? Most of the articles i've read are anecdotal or don't have comparisons to .Net. ...

I have a shell script in which I wrap a command (mvn clean install), to redirect the output to a logfile. 4 Answers ...

I'm after a regex that will validate a full complex UK postcode only within an input string. All of the uncommon postcode forms must be covered as well as the usual. For instance: ...

In chrome this opens in a new tab: 8 Answers 8 ...

I need to determine if an object already exists in an array in javascript. 11 Answers ...