Dart int isInfinite
Syntax & Examples

int.isInfinite property

The `isInfinite` property in Dart returns true if the number is positive infinity or negative infinity; otherwise, false.

Syntax of int.isInfinite

The syntax of int.isInfinite property is:

 bool isInfinite

This isInfinite property of int true if the number is positive infinity or negative infinity; otherwise, false.

Return Type

int.isInfinite returns value of type bool.


✐ Examples

1 Check positive infinity

In this example,

  1. We create a double variable infinity with the value double.infinity.
  2. We access its isInfinite property to check if it is infinite.
  3. We then print the result to standard output.

Dart Program

void main() {
  double infinity = double.infinity;
  bool isInfinite1 = infinity.isInfinite;
  print('Is $infinity infinite? $isInfinite1');
}

Output

Is Infinity infinite? true

2 Check negative infinity

In this example,

  1. We create a double variable negativeInfinity with the value -double.infinity.
  2. We access its isInfinite property to check if it is infinite.
  3. We then print the result to standard output.

Dart Program

void main() {
  double negativeInfinity = -double.infinity;
  bool isInfinite2 = negativeInfinity.isInfinite;
  print('Is $negativeInfinity infinite? $isInfinite2');
}

Output

Is -Infinity infinite? true

3 Check finite number

In this example,

  1. We create a double variable num with the value 10.0.
  2. We access its isInfinite property to check if it is infinite.
  3. We then print the result to standard output.

Dart Program

void main() {
  double num = 10.0;
  bool isInfinite3 = num.isInfinite;
  print('Is $num infinite? $isInfinite3');
}

Output

Is 10 infinite? false

Summary

In this Dart tutorial, we learned about isInfinite property of int: the syntax and few working examples with output and detailed explanation for each example.