Dart num truncate()
Syntax & Examples

num.truncate() method

The `truncate` method in Dart returns the integer obtained by discarding any fractional digits from this number.

Syntax of num.truncate()

The syntax of num.truncate() method is:

 int truncate()

This truncate() method of num returns the integer obtained by discarding any fractional digits from this.

Return Type

num.truncate() returns value of type int.


✐ Examples

1 Truncating a decimal number

In this example,

  1. We create a num variable number1 with the value 5.6 and another variable number2 with the value -3.2.
  2. We use the truncate() method to obtain their truncated integer values.
  3. We then print the truncated values to standard output.

Dart Program

void main() {
  num number1 = 5.6;
  num number2 = -3.2;
  int result1 = number1.truncate();
  int result2 = number2.truncate();
  print('Truncated value of $number1: $result1');
  print('Truncated value of $number2: $result2');
}

Output

Truncated value of 5.6: 5
Truncated value of -3.2: -3

2 Truncating a decimal number with fractional part

In this example,

  1. We create a num variable number with the value 10.9.
  2. We use the truncate() method to obtain its truncated integer value.
  3. We then print the truncated value to standard output.

Dart Program

void main() {
  num number = 10.9;
  int result = number.truncate();
  print('Truncated value of $number: $result');
}

Output

Truncated value of 10.9: 10

Summary

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