Implement Caching

[MiHarsh]

Description :

Caching techniques, such as LRU cache, could help users get their most frequently used emojis easily, hence improving user experience to a great extent.

How to Approach :

Use local storage to store the recently used emojis. Can have max cache length around 20-25. Create a new default section of those emojis.

Have a look at :

• https://www.geeksforgeeks.org/lru-cache-implementation/
• https://medium.com/dsinjs/implementing-lru-cache-in-javascript-94ba6755cda9

Feel free to change the default rendering UI accordingly, but have a prior discussion before implementation.