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By : Pierre ARNOU
Date : November 15 2020, 06:54 AM
To fix this issue Use usort() code :
``````\$arr = Array(
);

function custom_sort(\$a, \$b)
{
}

usort(\$arr, "custom_sort");

print '<pre>';
print_r(\$arr);
print '</pre>';
``````
``````Array
(
 => Array
(
[id] => 4
)

 => Array
(
[id] => 4
)

 => Array
(
[id] => 4
)

)
`````` ## Choosing minimum length k of array for merge sort where use of insertion sort to sort the subarrays is more optimal than

By : Elena Urquiola
Date : March 29 2020, 07:55 AM
like below fixes the issue Well, this is a mathematical minimization problem, and to solve it, we need some basic calculus.
We need to find the value of k for which d[n*k + n*lg(n/k)] / dk == 0.
code :
``````d[n*k + n*lg(n/k)] / dk = d[n*k + nlg(n) - nlg(k)] / dk
= n + 0 - n*1/k = n - n/k
=>
n - n/k = 0 => n = n/k => 1/k = 1 => k = 1
`````` ## Sort multi-dimensional array, append text and then continue to sort array by number value in javascript

By : perro123
Date : March 29 2020, 07:55 AM
With these it helps When you add pixel, you have strings and not numbers. So you need to parse out the number
code :
``````convertToArray: function(e){
var xVal = (Math.floor(e.offsetX / s.pixSize) * s.pixSize) + "px";
var yVal = (Math.floor(e.offsetY / s.pixSize) * s.pixSize) + "px";
s.storeValues.push([xVal, yVal]);
var compare = function(a, b) { return parseFloat(a) - parseFloat(b); };
s.storeValues.sort(compare);
}
`````` ## How to prompt user to input a number to get size of array. Then sort array using bubble sort method

By : syam ash
Date : March 29 2020, 07:55 AM
wish helps you Haven't practiced Java in a long while so any help would be appreciated. , You could do as follows:
code :
``````import java.util.Arrays;
import java.util.Scanner;
import java.util.Random;
public class BubbleTest {

public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
System.out.println("Please enter a number to create array."+"\n");
int z = scan.nextInt();
int [] array = new int[z];
// Randomly generating array elements

for(int i =0; i<z; i++){
array[i]=new Random().nextInt();
}
//  z = scan.nextInt();
System.out.println("Unsorted:");
System.out.println(Arrays.toString(array));

//Bubble Sort
for(int i = array.length-1; i>=0; i--)
{
for(int j=0; j<i; j++)
{
if(array[j] > array[j+1])
{
int temp = array[j];
array[j] = array[j+1];
array[j+1] = temp;
}
}
}

System.out.println("sorted:");
System.out.println(Arrays.toString(array));
}

}
`````` ## How does Return 1 or -1 works/means in array.sort (a>b) (JS)? Asking about process of the methos array.sort

By : Kaitlin Hoyt
Date : March 29 2020, 07:55 AM
With these it helps First of, as discussed above the MDN Sort description is very good.
But we can simplify for here:
code :
``````// Number ordering is very straight forward.
const hola = [0, 4, 10, 60, 5]
const holaSorted = hola.sort((a,b) => a-b);
console.log(holaSorted);

// reverse the order.
const holaSorted2 = hola.sort((a,b) => b-a);
console.log(holaSorted);``````
``````const people = [
{
name: 'Bob',
age: 20
},
{
name: 'Anne',
age: 50,
},
{
name: 'Terry',
age: 5
}
];

// Order by name
const byName = people.sort((a,b) => (a.name < b.name) ? -1 : (a.name > b.name) ? 1 : 0);

console.log(byName);

// Order by age
const byAge = people.sort((a, b) => a.age-b.age);

console.log(byAge);`````` ## Force chrome to do use merge sort or quick sort for array#sort

By : o_O
Date : March 29 2020, 07:55 AM
wish helps you Stable sort in Array#sort? No, you can't specify algorithm to use (and standard doesn't say anything about it). So you can either write your own sort function or extend the key: 