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javascript selection sort

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Aditya Pratap Singh answered on May 18, 2022 Popularity 10/10 Helpfulness 10/10

answer javascript selection sort

related How to perform selection sort, in JavaScript?

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javascript selection sort

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function selectionSort(arr){
    for(let i = 0; i<arr.length; i++){
      //find min number in subarray 
      //and place it at ith position
        let minptr = i;
        for(let j = i+1; j<arr.length; j++){
            if(arr[minptr] > arr[j]){
                minptr = j;
            }
        }
      //swap
        let temp = arr[i];
        arr[i] = arr[minptr];
        arr[minptr] = temp;
    }
    return arr;
}

let a = [99,44,6,2,1,5,63,87,283,4,0];
console.log(selectionSort(a));

Popularity 10/10 Helpfulness 10/10 Language javascript

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Tags: javascript selection-sort

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Contributed on Aug 13 2022

Aditya Pratap Singh

0 Answers Avg Quality 2/10

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How to perform selection sort, in JavaScript?

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/*
This is an implementation of the selection sort
algorithm.
Idea is to sort a list by successively putting
each value in its final sorted position.

Let n be the size of the list to sort

Time complexity: O(n^2),
Space complexity: O(1)
*/
function selectionSort(arr) {
  let min;
  // idx is position to fill up with next smallest value
  for (let idx = 0; idx < arr.length - 1; idx++) {
    min = idx;
    // Look for next smallest value in rest of array
    for (let scan = idx + 1; scan < arr.length; scan++) {
      if (arr[scan] < arr[min]) {
        min = scan;
      }
    }
    // Exchange current value with the next smallest value
    swap(arr, idx, min);
  }
}
function swap(arr, i, j) {
  const temp = arr[i];
  arr[i] = arr[j];
  arr[j] = temp;
}
const arr = [1, 10, 3, 2];
selectionSort(arr);
console.log(arr); // [ 1, 2, 3, 10 ]

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 18 2022

Wissam

0 Answers Avg Quality 2/10

selection sort javascript

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//selection sort javascript

function selectionSort(arr){
    for(let i = 0; i<arr.length; i++){
        let minptr = i;
        for(let j = i+1; j<arr.length; j++){
            if(arr[minptr] > arr[j]){
                minptr = j;
            }
        }
      //swap
        let temp = arr[i];
        arr[i] = arr[minptr];
        arr[minptr] = temp;
    }
    return arr;
}

let a = [99,44,6,2,1,5,63,87,283,4,0];
console.log(selectionSort(a));

Popularity 8/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Aug 21 2022

Uptight Unicorn

0 Answers Avg Quality 2/10

selection sort javascript

Comment

//selection sort javascript

const selectionSort = array => {
  const arr = Array.from(array); // avoid side effects
  for (let i = 0; i < arr.length - 1; i++) {
    let minPos = i;
    for (let j = i + 1; j < arr.length; j++) {
      if (arr[j] < arr[minPos]) {
        minPos = j;
      }
    }
    if (i !== minPos) {
      [arr[i], arr[minPos]] = [arr[minPos], arr[i]];
    }
  }
  return arr;
};

console.log(selectionSort([4, 9, 2, 1, 5]));

Popularity 8/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Aug 21 2022

Uptight Unicorn

0 Answers Avg Quality 2/10

javascript selection sort

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How to perform selection sort, in JavaScript?

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