I know there is a hr (horizontal rule) in html, but I don't believe there is a vr (vertical rule). Am I wrong and if not, why isn't there a vertical rule? ...

...e at signs ( @@ )? My understanding of a variable preceded with an at sign is that it is an instance variable, like this in PHP: ...

...tered Index Only one per table Faster to read than non clustered as data is physically stored in index order Non Clustered Index Can be used many times per table Quicker for insert and update operations than a clustered index Both types of index will improve performance when select data with...

... object returned, if it would resolve to the same file. The situation is different when a.js, b.js and app.js are in different npm modules. For example: [APP] --> [A], [B] [B] --> [A] In that case the require('a') in app.js would resolve to a different copy of a.js than require('a') ...

A process is considered to have completed correctly in Linux if its exit status was 0. 10 Answers ...

I've got this little script in sh (Mac OSX 10.6) to look through an array of files. Google has stopped being helpful at this point: ...

... Queue.Queue and collections.deque serve different purposes. Queue.Queue is intended for allowing different threads to communicate using queued messages/data, whereas collections.deque is simply intended as a datastructure. That's why Queue.Queue has methods like put_nowait(), get_nowait(), and jo...

...ld avoid using global variables in the first place due to confusion like this, but if I were to use them, is the following a valid way to go about using them? (I am trying to call the global copy of a variable created in a separate function.) ...

... To check for the existence of a process, use kill -0 $pid But just as @unwind said, if you're going to kill it anyway, just kill $pid or you will have a race condition. If you want to ignore the text output of kill and do something based...

How come this approach of creating a private class method works: 8 Answers 8 ...