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Does Redis persist data?
...stand that Redis serves all data from memory, but does it persist as well across server reboot so that when the server reboots it reads into memory all the data from disk. Or is it always a blank store which is only to store data while apps are running with no persistence?
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What is a git topic branch?
What is a git topic branch? Does it differ from an ordinary branch in some way? Are there any branches that are not topic branches?
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How to access a preexisting collection with Mongoose?
I have a large collection of 300 question objects in a database test . I can interact with this collection easily through MongoDB's interactive shell; however, when I try to get the collection through Mongoose in an express.js application I get an empty array.
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How to return result of a SELECT inside a function in PostgreSQL?
I have this function in PostgreSQL, but I don't know how to return the result of the query:
2 Answers
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Android Studio IDE: Break on Exception
It seems my Android Studio does not want to break on any exception by default. Enabling break on "Any Exception" starts breaking within actual JDE libraries. Is there any way to force it to break only on exceptions within my code only?
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The Concept of 'Hold space' and 'Pattern space' in sed
I'm confused by the two concepts in sed: hold space and pattern space. Can someone help explain them?
3 Answers
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Setting an object to null vs Dispose()
I am fascinated by the way the CLR and GC works (I'm working on expanding my knowledge on this by reading CLR via C#, Jon Skeet's books/posts, and more).
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How should I read a file line-by-line in Python?
In pre-historic times (Python 1.4) we did:
4 Answers
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Difference between socket and websocket?
I'm building web app that needs to communicate with another application using socket connections. This is new territory for me, so want to be sure that sockets are different than websockets . It seems like they're only conceptually similar.
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How to interpret API documentation function parameters?
Is there a standard to interpret the syntax of function interfaces in API documentations and if yes, how is it defined?
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