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JavaScript: Sort the items of an array

JavaScript Array: Exercise-7 with Solution

Write a JavaScript program to sort the items of an array.

Sample array : var arr1 = [ 3, 8, 7, 6, 5, -4, 3, 2, 1 ];
Sample Output : -4,-3,1,2,3,5,6,7,8

Pictorial Presentation:

JavaScript: Sort the items of an array

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Write a JavaScript program to sort the items of an array</title>
</head>
<body>
</body>
</html>

JavaScript Code:

var arr1=[-3,8,7,6,5,-4,3,2,1];
var arr2=[];
var min=arr1[0];
var pos;
var max=arr1[0];
for (i=0; i<arr1.length; i++)
{
        if (max<arr1[i]) max=arr1[i];
}

for (var i=0;i<arr1.length;i++)
{
        for (var j=0;j<arr1.length;j++)
        {
                if (arr1[j]!="x")
                {
                        if (min>arr1[j]) 
                        {
                                min=arr1[j];
                                pos=j;
                        }
                }
        }
        arr2[i]=min;
        arr1[pos]="x";
        min=max;
}
console.log(arr2);

Sample Output:

[-4,-3,1,2,3,5,6,7,8]

Flowchart:

Flowchart: JavaScript: Display the colors entered in an array by a specific format

ES6 Version:

const arr1=[-3,8,7,6,5,-4,3,2,1];
const arr2=[];
let min=arr1[0];
let pos;
var max=arr1[0];
for (i=0; i<arr1.length; i++)
{
        if (max<arr1[i]) max=arr1[i];
}

for (var i=0;i<arr1.length;i++)
{
        for (let j=0;j<arr1.length;j++)
        {
                if (arr1[j]!="x")
                {
                        if (min>arr1[j]) 
                        {
                                min=arr1[j];
                                pos=j;
                        }
                }
        }
        arr2[i]=min;
        arr1[pos]="x";
        min=max;
}
console.log(arr2);

Live Demo:

See the Pen JavaScript - Sort the items of an array- array-ex- 7 by w3resource (@w3resource) on CodePen.


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Previous: Write a JavaScript program which accept a number as input and insert dashes (-) between each two even numbers.
Next: Write a JavaScript program to find the most frequent item of an array.

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JavaScript: Tips of the Day

How to insert an item into an array at a specific index (JavaScript)?

What you want is the splice function on the native array object.

arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:

var arr = [];
arr[0] = "Jani";
arr[1] = "Hege";
arr[2] = "Stale";
arr[3] = "Kai Jim";
arr[4] = "Borge";

console.log(arr.join());
arr.splice(2, 0, "Lene");
console.log(arr.join());

Ref: https://bit.ly/2BXbp04