validate method

double validate({
  1. double value = 0.0,
})

Validates the double value and returns it if not null.

If the value is null, returns the specified value (default is 0.0).

Example:

double? value1;
double? value2 = 3.14;

print(value1.validate()); // Output: 0.0
print(value1.validate(value: 1.5)); // Output: 1.5
print(value2.validate()); // Output: 3.14

Implementation

double validate({double value = 0.0}) => this ?? value;