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How to listen for changes to a MongoDB collection?
...m creating a sort of background job queue system with MongoDB as the data store. How can I "listen" for inserts to a MongoDB collection before spawning workers to process the job? Do I need to poll every few seconds to see if there are any changes from last time, or is there a way my script can wait...
Django - How to rename a model field using South?
I would like to change a name of specific fields in a model:
6 Answers
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How to resolve merge conflicts in Git?
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Try: git mergetool
It opens a GUI that steps you through each conflict, and you get to choose how to merge. Sometimes it requires a bit of hand editing afterwards, but usually it's enough by itself. It is much better than doing the whole...
Cannot hide status bar in iOS7
I just upgraded my iPhone 5 iOS 7 to four beta version. Now when I run my app from Xcode 5 on this iPhone, status bar doesn’t hide, even though it should.
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
I recently attended an interview where I was asked "write a program to find 100 largest numbers out of an array of 1 billion numbers."
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Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
This fabulous answer suggests there’s no way to run multiple versions of Google Chrome on one machine.
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GitHub: How to make a fork of public repository private?
How can I fork a public repository, but make my fork private? I do have the subscription to support private repositories.
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How do I move an existing Git submodule within a Git repository?
I would like to change the directory name of a Git submodule in my Git superproject.
10 Answers
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Quickly find whether a value is present in a C array?
I have an embedded application with a time-critical ISR that needs to iterate through an array of size 256 (preferably 1024, but 256 is the minimum) and check if a value matches the arrays contents. A bool will be set to true is this is the case.
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How to handle click event in Button Column in Datagridview?
I am developing a windows application using C#. I am using DataGridView to display data. I have added a button column in that. I want to know how can I handle click event on that button in DataGridView.
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