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Java ByteBuffer to String
...he String API provides methods that converts between a String and a byte[] array in a particular encoding. These methods suggest using CharsetEncoder/CharsetDecoder "when more control over the decoding [encoding] process is required."
To get the bytes from a String in a particular encoding, you can...
Share Large, Read-Only Numpy Array Between Multiprocessing Processes
I have a 60GB SciPy Array (Matrix) I must share between 5+ multiprocessing Process objects. I've seen numpy-sharedmem and read this discussion on the SciPy list. There seem to be two approaches-- numpy-sharedmem and using a multiprocessing.RawArray() and mapping NumPy dtype s to ctype s. ...
Split string into array of character strings
I need to split a String into an array of single character Strings.
11 Answers
11
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Convert javascript array to string
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If value is associative array, such code will work fine:
var value = { "aaa": "111", "bbb": "222", "ccc": "333" };
var blkstr = [];
$.each(value, function(idx2,val2) {
var str = idx2 + ":" + val2;
blkstr.push(str);
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Is it possible to use argsort in descending order?
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If you negate an array, the lowest elements become the highest elements and vice-versa. Therefore, the indices of the n highest elements are:
(-avgDists).argsort()[:n]
Another way to reason about this, as mentioned in the comments, is to ...
How to convert Set to String[]?
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Use the Set#toArray(T[]) method taking a typed array argument of the same size.
String[] GPXFILES1 = myset.toArray(new String[myset.size()]);
A different size can also be used, but that would force the toArray() method to create a new a...
Why does the indexing start with zero in 'C'?
Why does the indexing in an array start with zero in C and not with 1?
16 Answers
16
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Export to CSV via PHP
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I personally use this function to create CSV content from any array.
function array2csv(array &$array)
{
if (count($array) == 0) {
return null;
}
ob_start();
$df = fopen("php://output", 'w');
fputcsv($df, array_keys(reset($array)));
foreach ($array as $row) {...
How to populate/instantiate a C# array with a single value?
I know that instantiated arrays of value types in C# are automatically populated with the default value of the type (e.g. false for bool, 0 for int, etc.).
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How to convert a String into an ArrayList?
...umber of words which are comma separated. I wanted each word added into an ArrayList. E.g.:
13 Answers
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