Brainy-Tech

Dive Into JavaScript Maps A Map stores data as key-value pairs. We'll recall how to create Maps, implement them, and delve into the details of their memory management. Understanding JavaScript Maps Maps are versatile data structures in JavaScript. They store key-value pairs and accept any data type as a key — even objects and functions! Here is how we create an empty Map: let myMap = new Map(); // creates an empty Map Here, myMap is a new JavaScript Map, eagerly awaiting to store your keys and values. Meander Through Map Methods Maps provide some essential built-in methods: set(key, value): Stores a key-value pair. get(key): Retrieves the value of a key. has(key): Checks if a key exists and returns true or false. delete(key): Erases a key-value pair. size: Returns the count of key-value pairs. To gain a better understanding, let's apply these methods: let myMap = new Map(); // Add pairs with set myMap.set('apples', 10); // Adds a new pair myMap.set('bananas', 6...

Understanding JavaScript Sets Set in JavaScript is an unordered collection of unique values. We can examine the size of the set using .size method. Notice that the set is unordered, and we can't guarantee that elements will be shown in the order we added them. Sets work similarly to JavaScript objects but are designed for uniqueness. They use hashing, a way to convert a given pearl into a unique code, which facilitates rapid storage and retrieval. When checking if an item is in a Set, JavaScript computes its hash code to locate it, much like a map leading to a treasure. Sets have numerous practical uses in database management, data analysis , and more . Problem 1: Check if Two Sets are Disjoint Let's begin by considering the function, areDisjoint which takes two arrays and determines if they are disjoint, meaning they have no elements in common. This is crucial when analysing datasets for overlapping values, similar to ensuring that two puzzle pieces from different puzzles d...