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What is a “callable”?
Now that it's clear what a metaclass is , there is an associated concept that I use all the time without knowing what it really means.
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Rails has_many with alias name
In my User model I could have:
5 Answers
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What are all the uses of an underscore in Scala?
I've taken a look at the list of surveys taken on scala-lang.org and noticed a curious question: " Can you name all the uses of “_”? ". Can you? If yes, please do so here. Explanatory examples are appreciated.
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Implementing Comments and Likes in database
I'm a software developer. I love to code, but I hate databases... Currently, I'm creating a website on which a user will be allowed to mark an entity as liked (like in FB), tag it and comment .
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Duplicate headers received from server
I found this error while exporting to pdf in chrome.
5 Answers
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Why should I prefer to use member initialization lists?
I'm partial to using member initialization lists with my constructors... but I've long since forgotten the reasons behind this...
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Allow user to select camera or gallery for image
What I'm trying to do seems very simple, but after a few days of searching I can't quite figure it out.
17 Answers
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Importing a CSV file into a sqlite3 database table using Python
I have a CSV file and I want to bulk-import this file into my sqlite3 database using Python. the command is ".import .....". but it seems that it cannot work like this. Can anyone give me an example of how to do it in sqlite3? I am using windows just in case.
Thanks
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How do I run a node.js app as a background service?
Since this post has gotten a lot of attention over the years, I've listed the top solutions per platform at the bottom of this post.
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Javascript seconds to minutes and seconds
This is a common problem but I'm not sure how to solve it. The code below works fine.
27 Answers
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