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Remove empty array elements
... of strings, you can simply use array_filter(), which conveniently handles all this for you:
print_r(array_filter($linksArray));
Keep in mind that if no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed. So if you need to preserve elements that ...
what is the difference between 'transform' and 'fit_transform' in sklearn
...is meant for when you have already computed PCA, i.e. if you have already called its .fit method.
In [12]: pc2 = RandomizedPCA(n_components=3)
In [13]: pc2.transform(X) # can't transform because it does not know how to do it.
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How ViewBag in ASP.NET MVC works
... properties such as ViewBag.Foo and magic strings ViewBag["Hello"] actually work?
7 Answers
...
AtomicInteger lazySet vs. set
...l values for a while, but you'd
like to ensure that structures are eventually GCable. In such
cases, you can get better performance by avoiding
the costs of the null volatile-write. There are a few
other use cases along these lines for non-reference-based
atomics as well, so the method is ...
How to remove convexity defects in a Sudoku square?
...surements[
ColorNegate@Binarize[srcAdjusted], {"ConvexArea", "Mask"}][[All,
2]];
largestComponent = Image[SortBy[components, First][[-1, 2]]]
By filling this image, I get a mask for the sudoku grid:
mask = FillingTransform[largestComponent]
Now, I can use a 2nd order derivative fil...
How to sort in mongoose?
...t:{
date_added: -1 //Sort by Date Added DESC
}
},
function(err,allNews){
socket.emit('news-load', allNews); // Do something with the array of 10 objects
})
share
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improve this answ...
SyntaxError: Non-ASCII character '\xa3' in file when function returns '£'
... First line is to make the py file executable on *nix. It is not really related to this question.
– cmd
Dec 15 '17 at 20:21
...
Difference between “module.exports” and “exports” in the CommonJs Module System
...ns to be set to module.exports.
At the end of your file, node.js will basically 'return' module.exports to the require function. A simplified way to view a JS file in Node could be this:
var module = { exports: {} };
var exports = module.exports;
// your code
return module.exports;
If you set a...
How do I install Python OpenCV through Conda?
I'm trying to install OpenCV for Python through Anaconda , but I can't seem to figure this out.
41 Answers
...
Difference between JSON.stringify and JSON.parse
...pt object into JSON text and stores that JSON text in a string, eg:
var my_object = { key_1: "some text", key_2: true, key_3: 5 };
var object_as_string = JSON.stringify(my_object);
// "{"key_1":"some text","key_2":true,"key_3":5}"
typeof(object_as_string);
// "string"
JSON.parse turns a...