A simple implementation of the Set data structure in JavaScript. This repository demonstrates how to create a set class with essential methods and explains its functionality with practical examples.

A Set is a collection of unique elements, meaning no duplicates are allowed. It is an unordered data structure that allows efficient membership tests, additions, and deletions. Sets are often used when you need to ensure that no duplicates exist in a collection.

• Add: Add a new element to the set.
• Delete: Remove an element from the set.
• Has: Check if an element exists in the set.
• Size: Get the number of elements in the set.
• Clear: Remove all elements from the set.

Here’s the JavaScript implementation of the set:

class Set {
    constructor() {
        this.items = {}; // Store elements as object keys
    }

    // Add an element to the set
    add(element) {
        if (!this.has(element)) {
            this.items[element] = element;
        }
    }

    // Remove an element from the set
    delete(element) {
        if (this.has(element)) {
            delete this.items[element];
        }
    }

    // Check if an element exists in the set
    has(element) {
        return this.items.hasOwnProperty(element);
    }

    // Get the size of the set
    size() {
        return Object.keys(this.items).length;
    }

    // Clear all elements from the set
    clear() {
        this.items = {};
    }
}

// Initialize the set
const set = new Set();

// Add elements to the set
set.add(1);
set.add(2);
set.add(3);

// Check if an element exists
console.log(set.has(2)); // Output: true
console.log(set.has(4)); // Output: false

// Get the size of the set
console.log(set.size()); // Output: 3

// Remove an element from the set
set.delete(2);
console.log(set.has(2)); // Output: false

// Clear the set
set.clear();
console.log(set.size()); // Output: 0

1. Removing Duplicates: Ensuring unique elements in collections such as arrays.
2. Membership Testing: Efficiently checking if an element exists in a collection.
3. Set Operations: Performing union, intersection, and difference between sets.
4. Data Validation: Ensuring that data doesn't contain duplicates before processing.

Want to see a quick tutorial on how to build this? Check out this TikTok video:

1. Clone the repository:

   git clone /~https://github.com/fix2015/structure_set
   cd structure_set

2. Open the file index.js in your favorite code editor.
3. Run the file using Node.js:

   node index.js

Contributions are welcome! If you have suggestions or want to add new features, feel free to create a pull request.

This project is licensed under the MIT License.

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