As a novice programmer, you may have heard the term “sorting algorithm” but have no idea what it is or how it works. Then fear not! In this article, we will delve into one of the most basic sorting algorithms, bubble sort.

But before we look at how bubble sort works, let’s first define what it is. Simply put, bubble sort is an algorithm that compares adjacent elements in an array and swaps their positions if they are not in the correct order. Continue doing this until the array is completely sorted.

Now that you have a basic understanding of bubble sort, let’s see how it works with an example. Suppose we need to sort an array of numbers from smallest to largest: [5, 2, 1, 4, 3] .

Using bubble sort, first compare the first two elements, 5 and 2. Since 5 is greater than 2, swap their positions. The array looks like this: [2, 5, 1, 4, 3] .

Then compare the second and third elements, 5 and 1. Since 5 is greater than 1, we swap their positions. The array looks like this: [2, 1, 5, 4, 3] .

Continue this process until the end of the array. The final step is to compare the 4th and 5th elements, 4 and 3. Since 4 is greater than 3, swap their positions. The final, permuted array looks like this: [1, 2, 3, 4, 5] .

That’s all for a better understanding of how bubble sort works. Now let’s look at some examples of using this algorithm in a practical way in JavaScript.

example

sort names alphabetically

Sort numbers from smallest to largest

Sort products by price

Sort employees by job title

Sort cities by population

Bubble sort performance and limitations

Now that we’ve seen some practical examples of using bubble sort in JavaScript, let’s talk about the performance and limitations of this algorithm.

One of the main limitations of bubble sort is its time complexity. Specifically, bubble sort has a time-complex of O(n^2) and gets slower as the size of the input increases. This is not the more efficient option for ordering large lists.

However, bubble sort has some advantages. This is a simple, easy-to-understand algorithm and a good choice for beginners. It also features a stable sort that preserves the relative ordering of elements with equal keys.

Conclusion

In conclusion, bubble sort is a simple and easy-to-understand algorithm that helps you sort small lists. It’s not the most efficient algorithm for ordering large lists, but it can still be a useful tool in certain situations. Remember to keep the time complexity in mind when deciding whether to use this algorithm.

As always, I hope you enjoyed this article and learned something new.

Thank you very much. See you in the next article!

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Ref

• https://tuan200tokyo.blogspot.com/2023/01/blog86-javascript.html