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.

Inheritance

Constructors

double()

Properties

sign double
Returns the sign of the double's numerical value. [...]
read-only
hashCode int
The hash code for this object. [...]
read-only, inherited
isFinite bool
True if the number is finite; otherwise, false. [...]
read-only, inherited
isInfinite bool
True if the number is positive infinity or negative infinity; otherwise, false.
read-only, inherited
isNaN bool
True if the number is the double Not-a-Number value; otherwise, false.
read-only, inherited
isNegative bool
True if the number is negative; otherwise, false. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

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. [...]
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 by other. [...]
round() int
Returns the integer closest to this. [...]
roundToDouble() double
Returns the integer double value closest to this. [...]
toString() String
Provide a representation of this double value. [...]
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. [...]
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
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toDouble() double
Return this num as a double. [...]
inherited
toInt() int
Truncates this num to an integer and returns the result as an int.
inherited
toStringAsExponential([int fractionDigits ]) String
Returns an exponential string-representation of this. [...]
inherited
toStringAsFixed(int fractionDigits) String
Returns a decimal-point string-representation of this. [...]
inherited
toStringAsPrecision(int precision) String
Converts this to a double and returns a string representation with exactly precision significant digits. [...]
inherited

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 unary-() double
Negate operator.
operator ~/(num other) int
Truncating division operator. [...]
operator <(num other) bool
Relational less than operator.
inherited
operator <=(num other) bool
Relational less than or equal operator.
inherited
operator ==(Object other) bool
Test whether this value is numerically equal to other. [...]
inherited
operator >(num other) bool
Relational greater than operator.
inherited
operator >=(num other) bool
Relational greater than or equal operator.
inherited

Static Methods

parse(String source, [ double onError(String source) ]) double
Parse source as an double literal and return its value. [...]

Constants

INFINITY double
Deprecated, use infinity instead.
infinity
infinity double
1.0 / 0.0
MAX_FINITE double
Deprecated, use maxFinite instead.
maxFinite
maxFinite double
1.7976931348623157e+308
MIN_POSITIVE double
Deprecated, use minPositive instead.
minPositive
minPositive double
5e-324
NAN double
Deprecated, use nan instead.
nan
nan double
0.0 / 0.0
NEGATIVE_INFINITY double
Deprecated, use negativeInfinity instead.
negativeInfinity
negativeInfinity double
-infinity