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Does MongoDB's $in clause guarantee order
... the order of the returned documents always correspond to the order of the array argument?
10 Answers
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Convert a bitmap into a byte array
...e(stream, System.Drawing.Imaging.ImageFormat.Png);
return stream.ToArray();
}
}
This one is equivalent to what you are doing, except the file is saved to memory instead of to disk. Although more code you have the option of ImageFormat and it can be easily modified between saving to mem...
How to compute the sum and average of elements in an array?
I am having problems adding all the elements of an array as well as averaging them out. How would I do this and implement it with the code I currently have? The elements are supposed to be defined as I have it below.
...
Convert numpy array to tuple
Note: This is asking for the reverse of the usual tuple-to-array conversion.
5 Answers
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How to get all properties values of a JavaScript Object (without knowing the keys)?
...ittle more compact or you want to be careful with functions in loops, then Array.prototype.forEach is your friend:
Object.keys(obj).forEach(function (key) {
var val = obj[key];
// use val
});
The next method builds an array containing the values of an object. This is convenient for loopin...
How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
...tting y = A + B log x, just fit y against (log x).
>>> x = numpy.array([1, 7, 20, 50, 79])
>>> y = numpy.array([10, 19, 30, 35, 51])
>>> numpy.polyfit(numpy.log(x), y, 1)
array([ 8.46295607, 6.61867463])
# y ≈ 8.46 log(x) + 6.62
For fitting y = AeBx, take the logar...
How to create an array of object literals in a loop?
I need to create an array of object literals like this:
9 Answers
9
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Sending multipart/formdata with jQuery.ajax
...s') but how is it possible to send this Data to the server? The resulting array ( $_POST ) on the serverside php-script is 0 ( NULL ) when using the file-input.
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How can I put strings in an array, split by new line?
...ing with line breaks in my database. I want to convert that string into an array, and for every new line, jump one index place in the array.
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Remove all elements contained in another array
I am looking for an efficient way to remove all elements from a javascript array if they are present in another array.
14 A...