Merge Two Arrays In Dart

In programming languages such as Dart, merging two arrays into one is a common operation. This article will provide a simple guide on how to merge two arrays in Dart.

Code snippet for merging two arrays

To start, below is a basic Dart code snippet where two arrays (also referred to as ‘Lists’ in Dart) are merged:

void main() {
  var array1 = [1, 2, 3];
  var array2 = ['a', 'b', 'c'];
  var mergedArray = [...array1, ...array2];

  print(mergedArray);
}

The output will be [1, 2, 3, a, b, c].

Code Explanation for merging two arrays

Let’s break down the code:

Step 1: Initialize your variables. Here, array1 is a list of integers, and array2 is a list of strings.

var array1 = [1, 2, 3];
var array2 = ['a', 'b', 'c'];

Step 2: Merge the arrays. To do this in Dart, you use the ‘spread operator’ (...). The spread operator will take each item in your list and add them to your new list separately. By including both array1 and array2 in your new list variable, you combine them into a single list.

var mergedArray = [...array1, ...array2];

Step 3: Print the merged array. Dart will first execute the operations, then output the result. When you run this print statement, Dart will return your combined list.

print(mergedArray);

That’s it! With the spread operator, you can conveniently merge two arrays into one in Dart. Remember that the order in which you put your lists will determine their order in the new, combined list. Happy coding!