DoubleConverter

Description

The DoubleConverter class allows you to convert arbitrary values into double 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

to_double

Converts a value into a double or returns 0 when the conversion is not possible.
See to_double_with_default

static to_double(value: Any): float

• value: Any - the value to convert.
• returns: float - double value or 0 when conversion is not supported.

to_double_with_default

Converts a value into a double or returns a default value when the conversion is not possible.

static to_double_with_default(value: Any, default_value: float = 0): float

• value: Any - the value to convert.
• default_value: float = None - the default value.
• returns: float - double value or default when conversion is not supported.

to_nullable_double

Converts a value into a double or returns None when conversion is not possible.

static to_nullable_double(value: Any): Optional[float]

• value: Any - the value to convert.
• returns: Optional[float] - double value or None when the conversion is not supported.

Examples

value1 = DoubleConverter.to_nullable_double("ABC")     # Returns None
value2 = DoubleConverter.to_nullable_double("123.456") # Returns 123.456
value3 = DoubleConverter.to_nullable_double(True)      # Returns 1
value4 = DoubleConverter.to_nullable_double(datetime.datetime.now()) # Returns current milliseconds (E.g. 1619812281454)