DoubleConverter class

Converts arbitrary values into double using extended conversion rules:

  • Strings are converted to double values
  • DateTime: total number of milliseconds since unix epoсh
  • Boolean: 1 for true and 0 for false

Example

var value1 = DoubleConverter.toNullableDouble('ABC'); // Result: null
var value2 = DoubleConverter.toNullableDouble('123.456'); // Result: 123.456
var value3 = DoubleConverter.toNullableDouble(true); // Result: 1
var value4 = DoubleConverter.toNullableDouble( Date()); // Result: current milliseconds

Constructors

DoubleConverter()

Properties

hashCode → int
The hash code for this object. [...]
read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toString() → String
Returns a string representation of this object.
inherited

Operators

operator ==(dynamic other) → bool
The equality operator. [...]
inherited

Static Methods

toDouble(dynamic value) → double
Converts value into doubles or returns 0 when conversion is not possible. [...]
toDoubleWithDefault(dynamic value, double defaultValue) → double
Converts value into integer or returns default value when conversion is not possible. [...]
toNullableDouble(dynamic value) → double
Converts value into doubles or returns null when conversion is not possible. [...]