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.
- Implements
- Implemented by
Static Methods
Constructors
- num()
Properties
- hashCode → int
-
Returns a hash code for a numerical value.
read-only - 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 - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited - sign → num
-
Returns minus one, zero or plus one depending on the sign and numerical value of the number.
read-only
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. -
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.
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. -
floor(
) → int -
Returns the greatest integer no greater than
this. -
floorToDouble(
) → double -
Returns the greatest double integer value no greater than
this. -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
remainder(
num other) → num -
Returns the remainder of the truncating division of
thisbyother. -
round(
) → int -
Returns the integer closest to
this. -
roundToDouble(
) → double -
Returns the double integer value closest to
this. -
toDouble(
) → 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.
-
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
thisto a double and returns a string representation with exactlyprecisionsignificant 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.