Design comparison
Solution retrospective
Optimizing performance is a key challenge in this project.
To address this, I implemented caching to reduce the number of API calls and a hash map to improve efficiency. I stored the countries data in localStorage, as the country data does not frequently change.
To further optimize memory usage, I used a .map() function to remove unnecessary fields from the data and created a hash map to store a pair of country code and country name for use in the border countries on the country page.
I welcome any code review or feedback to improve the performance of this implementation. Thank you.
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