The DoubleConverter class allows you to convert arbitrary values into doubles using extended conversion rules.
Description
The DoubleConverter class allows you to convert arbitrary values into doubles using the following extended conversion rules:
-
Strings are converted to double values
-
DateTime: total number of milliseconds since unix epoch
-
Boolean: 1 for true and 0 for false
Static methods
toDouble
Converts a value into a double or returns 0 when the conversion is not possible.
See toDoubleWithDefault
public static
double toDouble(Object value)
- value: any - value to convert.
- returns: number - double value or 0 when the conversion is not supported.
toDoubleWithDefault
Converts value into integer or returns default value when the conversion is not possible.
public static
double toDoubleWithDefault(Object value, double defaultValue)
- value: Object - value to convert.
- defaultValue: double - default value.
- returns: double - double value or default when the conversion is not supported.
toNullableDouble
Converts a value into a double or returns null when the conversion is not possible.
public static
Double toNullableDouble(Object value)
- value: Object - value to convert.
- returns: Double - double value or null when the conversion is not supported.
Examples
{
double value1 = DoubleConverter.toNullableDouble("ABC"); // Result: null
double value2 = DoubleConverter.toNullableDouble("123.456"); // Result: 123.456
double value3 = DoubleConverter.toNullableDouble(true); // Result: 1
double value4 = DoubleConverter.toNullableDouble(new Date()); // Result: current milliseconds
}