The IntegerConverter class allows you to convert arbitrary values into integers using extended conversion rules.
Description
The IntegerConverter class allows you to convert arbitrary values into integers using the following extended conversion rules:
- Strings are converted to floats, then to integers
- DateTime: total number of milliseconds since unix epoch
- Boolean: 1 for True and 0 for False
Static methods
toInteger
Converts a value into an integer or returns 0 when the conversion is not possible.
See LongConverter.toLong,
LongConverter.toLongWithDefault
static
int toInteger(value)
- value: dynamic - value to convert.
- returns: int - integer value or 0 when the conversion is not supported.
toIntegerWithDefault
Converts a value into an integer or returns a given default value when the conversion is not possible.
See LongConverter.toLongWithDefault,
LongConverter.toNullableLong
static
int toIntegerWithDefault(value, int defaultValue)
- value: dynamic - value to convert.
- defaultValue: int - default value.
- returns: int - integer value or given default when the conversion is not supported.
toNullableInteger
Converts a value into an integer or returns null when the conversion is not possible. See LongConverter.toNullableLong
static
int? toNullableInteger(value)
- value: dynamic - value to convert.
- returns: int? - integer value or null when the conversion is not supported.
Examples
var value1 = IntegerConverter.toNullableInteger('ABC'); // Result: null
var value2 = IntegerConverter.toNullableInteger('123.456'); // Result: 123
var value3 = IntegerConverter.toNullableInteger(true); // Result: 1
var value4 = IntegerConverter.toNullableInteger( Date()); // Result: current milliseconds