For any dart application, the initial execution requires a fair amount of time. Therefore, to solve this problem, flutter has two features: Hot Reload and Hot Restart, which reduce the execution time of our app after we run it.
- Hot Reload: It is considered an excellent feature of flutter that takes approximately one second to perform its functionality. With this function, you can make changes, fix bugs, create UIs, and add features easily and quickly. By utilizing the hot reload feature, we can quickly compile the new code in a file and send it to Dart Virtual Machine (DVM). As soon as DVM completes the update, it updates the app's UI. The preserved state is not destroyed in hot reload.
- Hot Restart: It has a slightly different functionality as compared to a hot reload. In this, the preserved states of our app are destroyed, and the code gets compiled again from the beginning. Although it takes longer than a hot reload, it's faster than a full restart function.