safeParseDouble function

double safeParseDouble(dynamic value, { double fallback = 0, })

Safely parses a dynamic value to a double.

This function attempts to convert the provided value to a double. If the value is null, an invalid number, or cannot be parsed, the fallback value is returned instead.

• Parameters:

  • value: A dynamic value that is expected to be convertible to a double.
  • fallback: A double value to return if parsing fails or if value is null. Defaults to 0 if not provided.

• Returns: A double representation of the value if parsing succeeds, or the fallback value if it fails.

• Example:

safeParseDouble('3.14');     // returns 3.14
safeParseDouble(null);       // returns 0 (fallback)
safeParseDouble('abc', fallback: 1.5);  // returns 1.5 (fallback)
safeParseDouble(10);         // returns 10.0 (automatic conversion from int)

Implementation

double safeParseDouble(dynamic value, {double fallback = 0}) {
  return double.tryParse((value ?? fallback).toString()) ?? fallback;
}