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

Methods

toDouble

Converts value into doubles or returns 0 when conversion is not possible.
See ToDoubleWithDefault

ToDouble(value any) float64

• value: any - value to convert.
• returns: float64 - double value or 0 when conversion is not supported.

ToDoubleWithDefault

Converts value into integer or returns default value when conversion is not possible.

ToDoubleWithDefault(value any, defaultValue float64) float64

• value: any - value to convert.
• defaultValue: float64 - default value.
• returns: float64 - double value or default when conversion is not supported.

ToNullableDouble

Converts value into doubles or returns nil when conversion is not possible.

ToNullableDouble(value any) (float64, bool)

• value: any - value to convert.
• returns: (float64, bool) - double value and true or 0 and false when conversion is not supported.

Examples

value1, ok1 := convert.DoubleConverter.ToNullableDouble("ABC")
value2, ok2 := convert.DoubleConverter.ToNullableDouble("123.456")
value3, ok3 := convert.DoubleConverter.ToNullableDouble(true)
value4, ok4 := convert.DoubleConverter.ToNullableDouble(time.Now())
fmt.Println(value1, ok1) // 0, false
fmt.Println(value2, ok2) // 123.456, true
fmt.Println(value3, ok3) // 1, true
fmt.Println(value4, ok4) // current milliseconds (e.g. 1.566333114e+09), true