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How to “properly” create a custom object in JavaScript?
I wonder about what the best way is to create an JavaScript object that has properties and methods.
15 Answers
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Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition
...RF).
You can find a nice OpenCV code example in Java, C++, and Python on this page: Features2D + Homography to find a known object
Both algorithms are invariant to scaling and rotation. Since they work with features, you can also handle occlusion (as long as enough keypoints are visible).
Image sou...
MVVM in WPF - How to alert ViewModel of changes in Model… or should I?
I am going through some MVVM articles, primarily this and this .
11 Answers
11
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What is an intuitive explanation of the Expectation Maximization technique? [closed]
Expectation Maximization (EM) is a kind of probabilistic method to classify data. Please correct me if I am wrong if it is not a classifier.
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How to prevent a dialog from closing when a button is clicked
...t will validate the input and then close the dialog. However, if the input is wrong, I want to remain in the same dialog. Every time no matter what the input is, the dialog should be automatically closed when I click on the "no" button. How can I disable this? By the way, I have used PositiveButton ...
Check if directory mounted with bash
...en
echo "yay"
else
echo "nay"
fi
In my example, the if-statement is checking the exit code of grep, which indicates if there was a match. Since I don't want the output to be displayed when there is a match, I'm redirecting it to /dev/null.
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Best Practices: Salting & peppering passwords?
I came across a discussion in which I learned that what I'd been doing wasn't in fact salting passwords but peppering them, and I've since begun doing both with a function like:
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Test if number is odd or even
What is the simplest most basic way to find out if a number/variable is odd or even in PHP?
Is it something to do with mod?
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What is the purpose of mock objects?
...s", I'll try a layman's example.
Unit Testing
Imagine unit testing for this system:
cook <- waiter <- customer
It's generally easy to envision testing a low-level component like the cook:
cook <- test driver
The test driver simply orders different dishes and verifies the cook return...
What does the `forall` keyword in Haskell/GHC do?
I'm beginning to understand how the forall keyword is used in so-called "existential types" like this:
8 Answers
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