Dart Number Methods
Dart Number Methods
In Dart, multiple number methods are built-in and useful when dealing with numbers. This tutorial will examine some of the most frequently used methods.
The commonly used number methods in Dart programming language are as follows:
| Number Method | Method Description |
| abs() | The abs() method returns the absolute value of the given number. |
| ceil() | The ceil() method returns the ceiling value of the given number. It returns the smallest integer greater than or equal to the given number. |
| floor() | The floor() method returns the floor value of the given number. It returns the largest integer less than or equal to the given number. |
| round() | The round() method returns the round of the number. This method returns the nearest integer. The round() method rounds to the nearest even number in case of a tie. For example, 5.5 would be rounded to 6. |
| compareTo() | This compareTo() method compares the value with another number |
| remainder() | The remainder() method returns the truncated remainder after dividing the two numbers. |
| toDouble() | The toDouble() method returns the double equivalent representation of the given number. |
| toInt() | The toInt() method returns the integer equivalent representation of the given number. This method converts a double to an integer by discarding the fractional part of the double number. |
| toString() | The toString() method returns the String equivalent representation of the given number. |
| truncate() | The truncate() method returns the integer after discarding the fraction digits. |
| parse() | The parse() method converts and returns the numeric value of the String. |
Example
abs()
The abs() method returns the absolute value of the given number.
Sample Dart program to show the usage of the abs() method.
/*
Dart Number Methods demo Program
Dart Tutorials – www.TestingDocs.com
*/
void main()
{
// declare a negative number
int negative_number = -7;
int abs_number = negative_number.abs();
print(abs_number);
}
We can use these methods to perform various mathematical operations and
conversions in the Dart programs.
Dart Tutorials
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