Find The Sum Of All Elements In An Array In Dart

In this article, we will explore how to compute the sum of all elements in an array in the Dart programming language. Dart offers several approaches to perform such tasks, and we’ll focus on the most concise and efficient method.

Code snippet: Finding the sum of Array Elements in Dart

void main() { 
  List<int> array = [2, 4, 6, 8, 10];
  int sum = array.reduce((a, b) => a + b);
  print(sum);
}

Code Explanation for “Finding the sum of Array Elements in Dart”

In the above Dart code snippet, the task of summing up array elements is done in three primary steps:

1. Defining the Array: We initiate by defining the array by List<int> array = [2, 4, 6, 8, 10];. Here array is a list of integers that holds our array.

2. Summing the Array: We then proceed to calculate the sum of the elements in the array using the reduce() function. The reduce() function takes a binary function (a function that takes two arguments) and applies it to all elements in the list in a sequential manner.

   The binary function used here is (a,b) => a+b, it is a lambda function that takes in two parameters, a and b, and returns their sum (a+b). The reduce() function applies this to the elements of the list sequentially.

   For instance, if our list was [2, 4, 6], it would first do 2+4=6, then it takes this result and adds the next element: 6+6=12, and so on until it runs out of elements. That’s how we end up with the sum of all elements in the array.

3. Printing the Result: Lastly, we print the resultant sum using the print() function.

Remember to ensure your Dart environment is properly set up and running to be able to run this code. This simple code snippet effectively demonstrates how to find the sum of all elements in an array using Dart.