by @kodeazy

flutter How to calculate average value of a list?

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In this blog we will discuss on how to caliculate the average value in a List.

To get the average value in a list follow below steps

  • Sum all the elements in a List store the result in a variable called sum.
  • Now divide the value inside the sum varibale with length of the List.
  • Below is the example program of getting the average of the list.

    void main() {
    int sum=0;
    var arr = [1,2,3,4,5]; 
    arr.forEach((e) => sum += e);
    print("Average value is ${sum/arr.length}");
    }

    Output:

    Average value is 3