# JavaScript: Sort an array using Bubble Sorting method

## JavaScript Object: Exercise-6 with Solution

Write a Bubble Sort algorithm in JavaScript.
Note: Bubble sort is a simple sorting algorithm that works by repeatedly stepping through the list to be sorted,
Sample Data: [6,4,0, 3,-2,1]
Expected Output : [-2, 0, 1, 3, 4, 6]

Sample Solution: -

HTML Code:

``````<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>Bubble Sort</title>
<body>
</body>
</html>
```
```

JavaScript Code:

``````Array.prototype.bubbleSort_algo = function()
{
var is_sorted = false;
while (!is_sorted)
{
is_sorted = true;
for (var n = 0; n < this.length - 1; n++)
{
if (this[n] > this[n+1]){
var x = this[n+1];
this[n+1] = this[n];
this[n] = x;
is_sorted = false;
}
}
}
return this;
};

console.log([6,4,0, 3,-2,1].bubbleSort_algo());
```
```

Sample Output:

```[-2,0,1,3,4,6]
```

Flowchart:

Live Demo:

See the Pen javascript-object-exercise-6 by w3resource (@w3resource) on CodePen.

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﻿

## JavaScript: Tips of the Day

instance

```class Calc {
constructor() {
this.count = 0
}

increase() {
this.count ++
}
}

const calc = new Calc()
new Calc().increase()

console.log(calc.count)
```

We set the variable calc equal to a new instance of the Calc class. Then, we instantiate a new instance of Calc, and invoke the increase method on this instance. Since the count property is within the constructor of the Calc class, the count property is not shared on the prototype of Calc. This means that the value of count has not been updated for the instance calc points to, count is still 0.

Ref: https://bit.ly/2Hcpkm6