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define array sort method in javascript

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Abdul Haseeb Siddiqui answered on June 25, 2020 Popularity 10/10 Helpfulness 1/10

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define array sort method in javascript

Comment

How does the following code sort this array to be in numerical order?     

    var array=[25, 8, 7, 41]

    array.sort(function(a,b){
      return a - b
    })

I know that if the result of the computation is... 

**Less than 0**: "a" is sorted to be a lower index than "b".<br />
**Zero:** "a" and "b" are considered equal, and no sorting is performed.<br />
**Greater than 0:** "b" is sorted to be a lower index than "a".<br />

Is the array sort callback function called many times during the course of the sort?

If so, I'd like to know which two numbers are passed into the function each time. I assumed it first took "25"(a) and "8"(b), followed by "7"(a) and "41"(b), so:

25(a) - 8(b) = 17 (greater than zero, so sort "b" to be a lower index than "a"): 8, 25

7(a) - 41(b) = -34 (less than zero, so sort "a" to be a lower index than "b": 7, 41

How are the two sets of numbers then sorted in relation to one another?

Please help a struggling newbie!

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript

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Contributed on Oct 10 2022

Abdul Haseeb Siddiqui

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sort() function example JavaScript

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function ascendingOrder(arr) {
  return arr.sort(function(a, b) {
    return a - b;
  });
}
ascendingOrder([1, 5, 2, 3, 4]);

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: www.freecodecamp.org

Tags: function functio

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Contributed on Apr 24 2021

TechSlugz

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sort method js

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-2

let numbers = [0, 1 , 2, 3, 10, 20, 30 ];
numbers.sort( function( a , b){
    if(a > b) return 1;
    if(a < b) return -1;
    return 0;
});

console.log(numbers);
Code language: JavaScript (javascript)

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Source: www.javascripttutorial.net

Tags: javascript j

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Contributed on Feb 20 2022

Subodh Chandra Shil

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Sort in array in Javascript

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const ascending: any= values.sort((a,b) =>  (a > b ? 1 : -1));
const descending: any= values.sort((a,b) => (a > b ? -1 : 1))

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

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Contributed on Jan 05 2022

Encouraging Eel

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sort array javascript

Comment

let array = ['12'. '54'];
array.sort((a,b) => a -b);

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Contributed on Sep 05 2021

Lovely Lemur

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how to sort an array in js

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//ascending order
let ArrayOne = [1,32,5341,10,32,10,90]
ArrayOne = ArrayOne.sort(function(x,y){x-y})
//descending order
let ArrayTwo = [321,51,51,324,111,1000]
ArrayTwo = ArrayTwo.sort(function(x,y){y-x})

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Contributed on Aug 04 2022

Homely Herring

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Sort in javascript

Comment

const numbers = [4, 7, 1, 3, 6, 9, 2, 5];
const numbersSort = numbers.sort();
console.log(numbersSort);
//Output:[1, 2, 3, 4, 5, 6, 7, 9]

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Contributed on Dec 26 2021

Ariful Islam Adil(Code Lover)

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sort array javascript

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//^ merge and sort arrays in JS
const array1 = [1, 2, 3, 5, 9, 10];
const array2 = [4, 8, 6, 7];
let sortedNewArray = [...array1, ...array2];

sortedNewArray.sort(function (a, b) {
    return a - b;
});

console.log(sortedNewArray);

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Contributed on Dec 02 2022

Subodh Chandra Shil

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sort array in JavaScript

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function sortArray(array) {
  var temp = 0;
  for (var i = 0; i < array.length; i++) {
    for (var j = i; j < array.length; j++) {
      if (array[j] < array[i]) {
        temp = array[j];
        array[j] = array[i];
        array[i] = temp;
      }
    }
  }
  return array;
}

console.log(sortArray([3,1,2]));

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Source: tutorial.eyehunts.com

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Contributed on Jan 31 2023

Visitor

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JavaScript Sorting Arrays

Comment

var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.sort();        // Sorts the elements of fruits

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Contributed on Feb 27 2021

SAMER SAEID

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sort function explained javascript

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var sortedArray = myArray.sort(function(a,b){
                                   if (a.name < b.name)
                                      return -1;
                                   else if (a.name == b.name)
                                      return 0;
                                   else
                                      return 1;
                               });

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Source: stackoverflow.com

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Contributed on Jun 25 2020

Defiant Dormouse

0 Answers Avg Quality 2/10

define array sort method in javascript

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