Dissecting Bubble Sort: A Case Study and Implementation with JavaScript

Khusni Ja'far
Tulisan Khusni
Published in
2 min readSep 26, 2023

In today’s digital age, data has become an invaluable asset. However, without proper structuring, data can be more of a burden than a boon. One fundamental technique to instill structure into data is sorting, and among the most renowned sorting algorithms is the Bubble Sort.

Why Bubble Sort?
Bubble Sort, though simplistic, is one of the most intuitive sorting algorithms available. Its name originates from its working mechanism, where the largest elements “float” to the top, reminiscent of air bubbles in water. While there are other sorting algorithms that are potentially more efficient for larger datasets, Bubble Sort remains a prime choice for grasping the basic concepts of sorting.

Case Study: Sorting a List of Student Grades
For illustration, let’s consider a scenario where a list of student grades needs to be sorted from lowest to highest. This list comprises scores ranging from 0 to 100. The goal is to rank students based on their scores.

Implementation in JavaScript:

function bubbleSort(arr) {
let len = arr.length;
let swapped;
do {
swapped = false;
for (let i = 0; i < len; i++) {
if (arr[i] > arr[i + 1]) {
let temp = arr[i];
arr[i] = arr[i + 1];
arr[i + 1] = temp;
swapped = true;
}
}
} while (swapped);
return arr;
}

const studentGrades = [75, 85, 60, 90, 50, 80];
console.log(bubbleSort(studentGrades)); // Output: [50, 60, 75, 80, 85, 90]

From the above implementation, we observe that the studentGrades array has been successfully sorted using the Bubble Sort algorithm.

Pros and Cons:
The primary advantage of Bubble Sort is its simplicity. For those new to algorithmic concepts, Bubble Sort provides an approach that’s easy to comprehend.

However, its most significant drawback is efficiency. For substantially large datasets, Bubble Sort might not be the most efficient choice. Nevertheless, a sound understanding of Bubble Sort can serve as a robust foundation before progressing to more intricate sorting algorithms.

Conclusion:
Bubble Sort stands as an excellent representation of how we can harness computational thinking to solve everyday problems. Through a deep understanding of foundational concepts like Bubble Sort, we can establish a strong footing in computer science and elevate our proficiency in addressing more intricate challenges in the future.

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