All Questions
17,310 questions
0
votes
2
answers
67
views
How do optimise Array.sort or what is the best way to sort large size JSON
i am using default array.sort method inside my application here is my sample code
const jsonArray = Array.from({ length: 100000 }, (_, i) => ({
id: i,
principle: Math.random() * 1000,
...
- 21
-2
votes
1
answer
110
views
How to sort a 2d array in Apps script (google sheet) base on a 1d array
I have a script that I have been using for some time, but I recently had a bug on the data sorter and since then I have been unable to fix the problem.
I transpose arrays because they are normally ...
-1
votes
4
answers
178
views
C++ sorting an array [closed]
I'm building a payroll program. It outputs one line at a time that contains employee ID, name, gross pay... and so on. I each line in order based on netpay. The only sorting methods I know, or that my ...
0
votes
0
answers
50
views
How can I count how many times multiple items show up in a database? [duplicate]
I would like to count each multiple of the items in an array returned from a SQL query:
$results = $stmt->fetchALL(PDO::FETCH_ASSOC);.
So if there are 5 instances of John and 3 of Sue in the db, ...
- 29
-2
votes
3
answers
135
views
How is this sorting the array in Java during merge [closed]
I was just reviewing some merge sorting and finding that I'm missing how when merging it is storing the sorted arrays.
import java.util.Arrays;
public class MergeTwoArrays2 {
public static void ...
- 1,050
2
votes
3
answers
228
views
How to sort a list of object by two fields when the first field is a date but of string type and the second field is a plain string
I have an array of Object that I need sorted by two of the object's fields.
Product.java
private String productionDate;
private String productionCountry;
private String productDescription;
Now I ...
- 1,067
2
votes
1
answer
76
views
is there any problem in the terms of time complexity in this code?
So today I was learning selection sort, and gain the concept how actually selection sort it working(i mean we add new element in the sorted array then check that element if it is on its correct ...
- 29
-5
votes
3
answers
99
views
How to sort my array by length of its keys array in javascript? [closed]
How to sort my array by length of its keys array in javascript ?
my_array = [];
my_array['a'] = ['val1', 'val2'];
my_array['b'] = ['val1', 'val2', 'val3'];
my_array['c'] = ['val1', 'val2'];
my_array['...
- 147
3
votes
1
answer
92
views
Why should native sorting functions be called by array_walk() with explicit sorting function parameters?
I ran a few tests on 2d arrays and found that in some contexts, native sorting functions can give unexpected results when array keys are 2, 5, 10, or 13.
$expected = range(0, 11);
$array = array_fill(...
- 48.4k
7
votes
6
answers
430
views
How to move duplicates to the end of an array while preserving order in C?
I need to write a function in C that processes an array by moving all duplicate elements to the end of the array. The function should preserve the relative order of distinct elements, but the order of ...
- 71
-1
votes
1
answer
28
views
sorting internal index of multidimensional array with column in PHP
I have a JSON record I converted to a PHP array.
$db=array(
array("Name"=>"Beans","Price"=>"10"),
array("Name"=>"Salad","...
- 27
2
votes
2
answers
94
views
LINQ - How to correctly group a list of users by their nested list of values
I have List<User> with this dependencies:
class User
{
public string Id { get; set; }
public List<ManagerGroup> ManagerGroups { get; set; }
}
class ManagerGroup
{
public string ...
- 45
-1
votes
1
answer
47
views
How to retain the index of an array element after flattening and sorting into descending order using sort() [duplicate]
I have a 2D array of integers. I need to find the largest value within the entire array along with its index.
Currently I am flattening the array and then using the sort() function to find the highest ...
- 11
-1
votes
5
answers
213
views
How to sort 2D array from horizontal (left-to-right) to vertical (top-to-bottom)
I want to convert the 2d array which is missing some values and has been sorted from left to right to a new array which is sorted from top to bottom like below examples. Cols and rows and the number ...
- 395
0
votes
2
answers
60
views
Javascript Array Object, return result in correct order
I have a created a array object. To simplify it I have just kept two fields, id and name.
I want to filter the mainArray and return the result in the order of the [3,9,1] as seen in the filterArray ...
- 19