Range class

A numerical progression.

For basic usage, just provide the (exclusive) stop value - note that, by default, the range is exclusive of the stop value:

final range = Range(stop:5);
print(range.toList());

Result: [0, 1, 2, 3, 4]

Providing a start value allows for a non-zero starting point:

final range = Range(start: 1, stop:5);
print(range.toList());

Result: [1, 2, 3, 4]

Consider using the range() function if you just want to use a one-off range in a loop.

Implemented types

• MappedObject

Constructors

Range({num start = 0, required num stop, num step = 1, bool stopExclusive = true})

Range constructor

Properties

hashCode → int

The hash code for this object.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

start → num

The starting value of the range (inclusive), defaults to 0

final

step → num

The step progression, defaults to 1. Must be greater than 0

final

stop → num

The end value of the range (exclusive)

final

stopExclusive → bool

If false, the stop value is inclusive. Defaults to true

final

Methods

contains(num input) → bool

True if input is between start (inclusive) and stop.

generate() → Iterable<num>

Generate the values for the range.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toList() → List<num>

Generate all list of all values in the range.

toMap() → Map<String, dynamic>

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

override