Check out example codes for "how to return a random number from a list in dart". It will help you in understanding the concepts better.

Code Example 1

import "dart:math";

void main() {
 var list = ['a','b','c','d'];
    var element = getRandomElement(list);
    print(element);  
}


T getRandomElement<T>(List<T> list) {
    final random = new Random();
    var i = random.nextInt(list.length);
    return list[i];
}

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