A React JS coding question asked during the interview🙌
In this video, we'll explore a simple React app that dynamically updates city options based on the selected country. Here's what the code does:
-Countries and Cities Data: We have an array of countries, each with its associated cities.
-useState Hook: We use useState to manage the selected country and its corresponding cities.
-Dynamic Dropdowns:The first dropdown allows you to select a country.Based on the selected country, the second dropdown updates with the relevant cities.
-OnChange Event: When a country is selected, the handleChange function filters the cities for the selected country and updates the state.
This is a perfect beginner-friendly example to understand state management and conditional rendering in React. 🚀
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