The runApp() function takes the given Widget and makes it the root of the widget tree .
Read moreWhat are the differences between main () and runApp () functions?
In Dart, main() acts as the entry point for the program whereas runApp() attaches the given widget to the screen . According to this post, it’s possible to establish configuration variables before actually attaching the first widget. This makes the separation between main() and runApp() pretty useful.15 Kas 2019
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