Dart num abs()
Syntax & Examples

num.abs() method

The `abs` method in Dart returns the absolute value of the given num.

Syntax of num.abs()

The syntax of num.abs() method is:

 num abs()

This abs() method of num returns the absolute value of this num.

Return Type

num.abs() returns value of type num.


✐ Examples

1 Absolute value of a negative decimal number

In this example,

  1. We create a num variable negativeNum with the value -3.8.
  2. We use the abs() method to get its absolute value.
  3. We then print the result to standard output.

Dart Program

void main() {
  num negativeNum = -3.8;
  num absValue = negativeNum.abs();
  print('Absolute value of $negativeNum: $absValue');
}

Output

Absolute value of -3.8: 3.8

2 Absolute value of a negative integer

In this example,

  1. We create an num variable positiveNum with the value 7.
  2. We use the abs() method to get its absolute value.
  3. We then print the result to standard output.

Dart Program

void main() {
  num positiveNum = 7;
  num absValue = positiveNum.abs();
  print('Absolute value of $positiveNum: $absValue');
}

Output

Absolute value of 7: 7

3 Absolute value of zero

In this example,

  1. We create a num variable zero with the value 0.
  2. We use the abs() method to get its absolute value.
  3. We then print the result to standard output.

Dart Program

void main() {
  num zero = 0;
  num absValue = zero.abs();
  print('Absolute value of $zero: $absValue');
}

Output

Absolute value of 0: 0

Summary

In this Dart tutorial, we learned about abs() method of num: the syntax and few working examples with output and detailed explanation for each example.