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How to find integer numbers length in Dart?| Flutter By Example


find integer numbers length Dart and Flutter

This tutorial shows you how to find integer number lengths in Dart.

For example, if the given number is 12345, Then the length of a number is 5.

How to find the length of a number string in Dart?

There are many ways to find the length of an integer in a dart

The below program explains about The first way is, Convert the integer to a string using the toString() method Call length property to return the length of a string.

The second way, convert a number to a String using interpolation syntax. Call length property

void main() {
  int num = 123456;

  print(num.toString().length); // 6
  print('$num'.length); // 6
  print(1231456.length()); // 7
}

extension NumberLength on num {
  int length() => this.toString().length;
}

Another way is to write an Extension on the num type

Added the length method that returns the string length.

void main() {
  print(1231456.length()); // 7
}

extension NumberLength on num {
  int length() => this.toString().length;
}

Conclusion

Learn how to get the size of an integer in a dart with examples.

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