num class

An integer or floating-point number.

It is a compile-time error for any type other than int or double to attempt to extend or implement num.

Implemented types
Implementers

Constructors

num()

Properties

hashCode int
Returns a hash code for a numerical value. [...]
read-only, override
isFinite bool
True if the number is finite; otherwise, false. [...]
read-only
isInfinite bool
True if the number is positive infinity or negative infinity; otherwise, false.
read-only
isNaN bool
True if the number is the double Not-a-Number value; otherwise, false.
read-only
isNegative bool
True if the number is negative; otherwise, false. [...]
read-only
sign num
Returns minus one, zero or plus one depending on the sign and numerical value of the number. [...]
read-only
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

abs() num
Returns the absolute value of this num.
ceil() int
Returns the least integer no smaller than this. [...]
ceilToDouble() double
Returns the least double integer value no smaller than this. [...]
clamp(num lowerLimit, num upperLimit) num
Returns this num clamped to be in the range lowerLimit-upperLimit. [...]
compareTo(num other) int
Compares this to other. [...]
override
floor() int
Returns the greatest integer no greater than this. [...]
floorToDouble() double
Returns the greatest double integer value no greater than this. [...]
remainder(num other) num
Returns the remainder of the truncating division of this by other. [...]
round() int
Returns the integer closest to this. [...]
roundToDouble() double
Returns the double integer value closest to this. [...]
toDouble() double
Return this num as a double. [...]
toInt() int
Truncates this num to an integer and returns the result as an int.
toString() String
Returns the shortest string that correctly represent the input number. [...]
override
toStringAsExponential([int fractionDigits]) String
Returns an exponential string-representation of this. [...]
toStringAsFixed(int fractionDigits) String
Returns a decimal-point string-representation of this. [...]
toStringAsPrecision(int precision) String
Converts this to a double and returns a string representation with exactly precision significant digits. [...]
truncate() int
Returns the integer obtained by discarding any fractional digits from this. [...]
truncateToDouble() double
Returns the double integer value obtained by discarding any fractional digits from the double value of this. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited

Operators

operator %(num other) num
Euclidean modulo operator. [...]
operator *(num other) num
Multiplication operator.
operator +(num other) num
Addition operator.
operator -(num other) num
Subtraction operator.
operator /(num other) double
Division operator.
operator <(num other) bool
Relational less than operator.
operator <=(num other) bool
Relational less than or equal operator.
operator ==(Object other) bool
Test whether this value is numerically equal to other. [...]
override
operator >(num other) bool
Relational greater than operator.
operator >=(num other) bool
Relational greater than or equal operator.
operator unary-() num
Negate operator.
operator ~/(num other) int
Truncating division operator. [...]

Static Methods

parse(String input, [num onError(String input)]) num
Parses a string containing a number literal into a number. [...]
tryParse(String input) num
Parses a string containing a number literal into a number. [...]