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MongoDb query condition on comparing 2 fields
I have a collection T , with 2 fields: Grade1 and Grade2 , and I want to select those with condition Grade1 > Grade2 , how can I get a query like in MySQL?
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How can I pass a member function where a free function is expected?
The question is the following: consider this piece of code:
9 Answers
9
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What is the difference between gsub and sub methods for Ruby Strings
I have been perusing the documentation for String today, and I saw the :sub method, which I'd never noticed before. I've been using :gsub and it appears that they are essentially the same. Can anyone explain the difference to me? Thanks!
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Getting unique items from a list [duplicate]
What is the fastest / most efficient way of getting all the distinct items from a list?
5 Answers
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Character reading from file in Python
In a text file, there is a string "I don't like this".
8 Answers
8
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Understanding recursion [closed]
I'm having major trouble understanding recursion at school. Whenever the professor is talking about it, I seem to get it but as soon as I try it on my own it completely blows my brains.
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How to handle both a single item and an array for the same property using JSON.net
I'm trying to fix my SendGridPlus library to deal with SendGrid events, but I'm having some trouble with the inconsistent treatment of categories in the API.
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A generic list of anonymous class
In C# 3.0 you can create anonymous class with the following syntax
22 Answers
22
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Date query with ISODate in mongodb doesn't seem to work
I don't seem to be able to get even the most basic date query to work in MongoDB. With a document that looks something like this:
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What is the convention for word separator in Java package names?
How should one separate words in package names? Which of the following are correct?
6 Answers
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