A double-precision floating point number.
Representation of Dart doubles containing double specific constants and operations and specializations of operations inherited from num. Dart doubles are 64-bit floating-point numbers as specified in the IEEE 754 standard.
The double type is contagious. Operations on doubles return double results.
It is a compile-time error for a class to attempt to extend or implement double.
Constants
- double INFINITY = 1.0 / 0.0
-
const
- double MAX_FINITE = 1.7976931348623157e+308
-
const
- double MIN_POSITIVE = 5e-324
-
const
- double NAN = 0.0 / 0.0
-
const
- double NEGATIVE_INFINITY = -INFINITY
-
const
Static Methods
Properties
- bool isFinite
-
read-only, inheritedTrue if the number is finite; otherwise, false.
- bool isInfinite
-
read-only, inheritedTrue if the number is positive infinity or negative infinity; otherwise, false.
- bool isNaN
-
read-only, inheritedTrue if the number is the double Not-a-Number value; otherwise, false.
- bool isNegative
-
read-only, inheritedTrue if the number is negative; otherwise, false.
- double sign
-
read-onlyReturns the sign of the double's numerical value.
Constructors
- double()
Operators
-
operator %(
num other) → double - Euclidean modulo operator.
-
operator *(
num other) → double - Multiplication operator.
-
operator +(
num other) → double - Addition operator.
-
operator -(
num other) → double - Subtraction operator.
-
operator /(
num other) → double - Division operator.
-
operator <(
num other) → bool -
inheritedRelational less than operator.
-
operator <=(
num other) → bool -
inheritedRelational less than or equal operator.
-
operator ==(
Object other) → bool -
inheritedTest whether this value is numerically equal to
other
. -
operator >(
num other) → bool -
inheritedRelational greater than operator.
-
operator >=(
num other) → bool -
inheritedRelational greater than or equal operator.
-
operator unary-(
) → double - Negate operator.
-
operator ~/(
num other) → int - Truncating division operator.
Methods
-
abs(
) → double - Returns the absolute value of this double.
-
ceil(
) → int -
Returns the least integer no smaller than
this
. -
ceilToDouble(
) → double -
Returns the least integer double value no smaller than
this
. -
clamp(
num lowerLimit, num upperLimit) → num -
inheritedReturns this num clamped to be in the range
lowerLimit
-upperLimit
. -
compareTo(
num other) → int -
inheritedCompares this to
other
. -
floor(
) → int -
Returns the greatest integer no greater than
this
. -
floorToDouble(
) → double -
Returns the greatest integer double value no greater than
this
. -
remainder(
num other) → double -
Returns the remainder of the truncating division of
this
byother
. -
round(
) → int -
Returns the integer closest to
this
. -
roundToDouble(
) → double -
Returns the integer double value closest to
this
. -
toDouble(
) → double -
inheritedReturn this num as a double.
-
toInt(
) → int -
inheritedTruncates this num to an integer and returns the result as an int.
-
toString(
) → String - Provide a representation of this double value.
-
toStringAsExponential(
[int fractionDigits]) → String -
inheritedReturns an exponential string-representation of
this
. -
toStringAsFixed(
int fractionDigits) → String -
inheritedReturns a decimal-point string-representation of
this
. -
toStringAsPrecision(
int precision) → String -
inheritedConverts
this
to a double and returns a string representation with exactlyprecision
significant digits. -
truncate(
) → int -
Returns the integer obtained by discarding any fractional
digits from
this
. -
truncateToDouble(
) → double -
Returns the integer double value obtained by discarding any fractional
digits from
this
.