What data structures do you use in your project?

Arrays (Array) are for ordered collections of elements of the same or different types. Objects (Object) are for storing key-value pairs, representing associative arrays or hash maps. Sets (Set) are for storing unique values. Maps (Map) are for storing key-value pairs with any data type as the key, maintaining insertion order.

// Example of using an array
const numbers = [1, 2, 3];

// Example of using an object
const user = {
  name: 'Alice',
  age: 30
};

// Example of using a set
const uniqueIds = new Set([1, 2, 2, 3]); // uniqueIds will contain {1, 2, 3}

// Example of using a map
const userMap = new Map();
userMap.set('id', 123);
userMap.set('name', 'Bob');

Depending on the specific task and libraries used, specialized data structures may be applied, such as:

• Linked lists (although not natively in JS, but can be implemented or used via libraries).
• Trees (e.g., for representing DOM structures).
• Graphs (less common, but useful for complex relationships).

The choice of data structure is determined by performance requirements for operations (adding, removing, searching), the need to preserve element order, and value uniqueness.