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Convert integer into byte array (Java)
what's a fast way to convert an Integer into a Byte Array ?
11 Answers
11
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numpy: most efficient frequency counts for unique values in an array
...s there an efficient way to get frequency counts for unique values in an array?
16 Answers
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PostgreSQL array_agg order
...M test ORDER BY y DESC) AS tab;
So in your case you would write:
SELECT
array_to_string(array_agg(animal_name),';') animal_names,
array_to_string(array_agg(animal_type),';') animal_types
FROM (SELECT animal_name, animal_type FROM animals) AS x;
The input to the array_agg would then be unordered...
Saving a Numpy array as an image
I have a matrix in the type of a Numpy array. How would I write it to disk it as an image? Any format works (png, jpeg, bmp...). One important constraint is that PIL is not present.
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How do I convert an enum to a list in C#? [duplicate]
...d .ToList() after .Cast<SomeEnum>().
To use the Cast function on an Array you need to have the System.Linq in your using section.
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Calling dynamic function with dynamic number of parameters [duplicate]
...od of a function:-
function mainfunc (func){
window[func].apply(null, Array.prototype.slice.call(arguments, 1));
}
Edit: It occurs to me that this would be much more useful with a slight tweak:-
function mainfunc (func){
this[func].apply(this, Array.prototype.slice.call(arguments, 1));...
typedef fixed length array
...owever, this is probably a very bad idea, because the resulting type is an array type, but users of it won't see that it's an array type. If used as a function argument, it will be passed by reference, not by value, and the sizeof for it will then be wrong.
A better solution would be
typedef struc...
Add a custom attribute to a Laravel / Eloquent model on load?
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The problem is caused by the fact that the Model's toArray() method ignores any accessors which do not directly relate to a column in the underlying table.
As Taylor Otwell mentioned here, "This is intentional and for performance reasons." However there is an easy way to achie...
Is it better to call ToList() or ToArray() in LINQ queries?
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Unless you simply need an array to meet other constraints you should use ToList. In the majority of scenarios ToArray will allocate more memory than ToList.
Both use arrays for storage, but ToList has a more flexible constraint. It needs the arra...
Javascript Equivalent to C# LINQ Select
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Yes, Array.map() or $.map() does the same thing.
//array.map:
var ids = this.fruits.map(function(v){
return v.Id;
});
//jQuery.map:
var ids2 = $.map(this.fruits, function (v){
return v.Id;
});
console.log(ids, ids2);
...