JsonNumber extension type
A zero-cost wrapper around a JSON number.
This type exists to provide a subtype of JsonValue that is a number.
Constructors
- JsonNumber(num _value)
-
const
- JsonNumber.parse(String input)
-
Parses and casts the given
inputas a number.factory -
JsonNumber.parseUtf8(List<
int> bytes) -
Parses and returns the given UTF8-encoded
bytesas a number.factory
Properties
- hashCode → int
-
Returns a hash code for a numerical value.
no setterinherited
- isFinite → bool
-
Whether this number is finite.
no setterinherited
- isInfinite → bool
-
Whether this number is positive infinity or negative infinity.
no setterinherited
- isNaN → bool
-
Whether this number is a Not-a-Number value.
no setterinherited
- isNegative → bool
-
Whether this number is negative.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- sign → num
-
Negative one, zero or positive one depending on the sign and
numerical value of this number.
no setterinherited
Methods
-
abs(
) → num -
The absolute value of this number.
inherited
-
asAny(
) → JsonAny -
Converts this object into a JsonAny.
inherited
-
ceil(
) → int -
The least integer no smaller than
this.inherited -
ceilToDouble(
) → double -
Returns the least double integer value no smaller than
this.inherited -
clamp(
num lowerLimit, num upperLimit) → num -
Returns this num clamped to be in the range
lowerLimit-upperLimit.inherited -
compareTo(
num other) → int -
Compares this to
other.inherited -
floor(
) → int -
The greatest integer no greater than this number.
inherited
-
floorToDouble(
) → double -
Returns the greatest double integer value no greater than
this.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
remainder(
num other) → num -
The remainder of the truncating division of
thisbyother.inherited -
round(
) → int -
The integer closest to this number.
inherited
-
roundToDouble(
) → double -
The double integer value closest to this value.
inherited
-
toDouble(
) → double -
This number as a double.
inherited
-
toInt(
) → int -
Truncates this num to an integer and returns the result as an int.
inherited
-
toString(
) → String -
The shortest string that correctly represents this number.
inherited
-
toStringAsExponential(
[int? fractionDigits]) → String -
An exponential string-representation of this number.
inherited
-
toStringAsFixed(
int fractionDigits) → String -
A decimal-point string-representation of this number.
inherited
-
toStringAsPrecision(
int precision) → String -
A string representation with
precisionsignificant digits.inherited -
truncate(
) → int -
The integer obtained by discarding any fractional digits from
this.inherited -
truncateToDouble(
) → double -
Returns the double integer value obtained by discarding any fractional
digits from the double value of
this.inherited
Operators
-
operator %(
num other) → num -
Euclidean modulo of this number by
other.inherited -
operator *(
num other) → num -
Multiplies this number by
other.inherited -
operator +(
num other) → num -
Adds
otherto this number.inherited -
operator -(
num other) → num -
Subtracts
otherfrom this number.inherited -
operator /(
num other) → double -
Divides this number by
other.inherited -
operator <(
num other) → bool -
Whether this number is numerically smaller than
other.inherited -
operator <=(
num other) → bool -
Whether this number is numerically smaller than or equal to
other.inherited -
operator ==(
Object other) → bool -
Test whether this value is numerically equal to
other.inherited -
operator >(
num other) → bool -
Whether this number is numerically greater than
other.inherited -
operator >=(
num other) → bool -
Whether this number is numerically greater than or equal to
other.inherited -
operator unary-(
) → num -
The negation of this value.
inherited
-
operator ~/(
num other) → int -
Truncating division operator.
inherited