num class Null safety
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
- 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
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. [...] -
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 - 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
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. [...]
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. [...]