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Learn C first before learning Objective-C [closed]
...also reduces the amount of material that has to be learned (and some of it selectively filtered out) to writing Objective-C programs.
I do agree that you will want to learn most, if not all, of the underlying C features, but many can be deferred until a solid grasp of defining classes and method...
What is the difference between the Data Mapper, Table Data Gateway (Gateway), Data Access Object (DA
...ata Gateway is used mainly for a single table or view. It contains all the selects, inserts, updates, and deletes. So Customer is a table or a view in your case. So, one instance of a table data gateway object handles all the rows in the table. Usually this is related to one object per database tabl...
Advantage of creating a generic repository vs. specific repository for each object?
...se GetById(int id)? How would composite keys work? I wondered if a generic selection by ID was a worthwhile abstraction. If not, what else would generic repositories be forced to express akwardly? That was the line of reasoning behind abstracting the implementation, not the interface.
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Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...the values in your code be reused to compute the cluster quality to aid in selecting the number of optimal clusters?
– Legend
Jul 11 '11 at 6:10
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How do I find out which computer is the domain controller in Windows programmatically?
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@DorkyEngineer how about marking this as your selected answer?
– ErikE
Jan 4 '13 at 2:44
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How to use Elasticsearch with MongoDB?
...ng bumped up when you update.
echo "mongodb-10gen hold" | sudo dpkg --set-selections
Start the MongoDB service.
sudo service mongodb start
Your database files default to /var/lib/mongo and your log files to /var/log/mongo.
Create a database through the mongo shell and push some dummy data int...
Android preferences onclick event
...nge(Preference preference, Object value) {
System.out.println("Selected: " + value);
return true;
}
});
}
share
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improve this answer
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f...
What is the difference between customErrors and httpErrors?
... the Debugging Properties 2.) under "Error Pages / Edit Feature Settings", select "Detailed errors". 3.) disable "Show friendly HTTP error messages" in IE stackoverflow.com/questions/2640526/…
– Kiquenet
Oct 6 '15 at 19:38
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Spring @Transactional - isolation, propagation
...ion. I think if you understand the dirty reads concept you will be able to select a good option.
Example of when a dirty read can occur:
thread 1 thread 2
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write(x) |
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| read(x)
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rollback |
v v...
How to run travis-ci locally
...ainer Based Docker Image Locally
Download and install the Docker Engine.
Select an image from Docker Hub. If you're not using a language-specific image pick ci-ruby. Open a terminal and start an interactive Docker session using the image URL:
docker run -it travisci/ubuntu-ruby:18.04 /bin/bash
S...