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How to count certain elements in array?
I have an array:
19 Answers
19
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Difference between JSONObject and JSONArray
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When you are working with JSON data in Android, you would use JSONArray to parse JSON which starts with the array brackets. Arrays in JSON are used to organize a collection of related items (Which could be JSON objects).
For example: [{"name":"item 1"},{"name": "item2} ]
On the other hand...
Convert an array of primitive longs into a List of Longs
...first attempt surprisingly completely failed to work. I wanted to take an array of primitive longs and turn it into a list, which I attempted to do like this:
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How to get unique values in an array
How can I get a list of unique values in an array? Do I always have to use a second array or is there something similar to java's hashmap in JavaScript?
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Why do I get an UnsupportedOperationException when trying to remove an element from a List?
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Quite a few problems with your code:
On Arrays.asList returning a fixed-size list
From the API:
Arrays.asList: Returns a fixed-size list backed by the specified array.
You can't add to it; you can't remove from it. You can't structurally modify the List.
Fi...
Passing arguments to angularjs filters
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.filter('weDontLike', function(){
return function(items, name){
var arrayToReturn = [];
for (var i=0; i<items.length; i++){
if (items[i].name != name) {
arrayToReturn.push(items[i]);
}
}
return arrayToReturn;
};
Here is the working jsFiddl...
Sorting arrays in NumPy by column
How can I sort an array in NumPy by the nth column?
13 Answers
13
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Fast stable sorting algorithm implementation in javascript
I'm looking to sort an array of about 200-300 objects, sorting on a specific key and a given order (asc/desc). The order of results must be consistent and stable.
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Return index of greatest value in an array
...wice as many comparisons as necessary and will throw a RangeError on large arrays, though. I’d stick to the function.
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When is each sorting algorithm used? [closed]
...ar time as well.
Also you need at least n extra space for the intermediate array and it is stable obviously.
/**
* Some VMs reserve some header words in an array.
* Attempts to allocate larger arrays may result in
* OutOfMemoryError: Requested array size exceeds VM limit
*/
private static final int...