A generator of random bool, int, or double values.
The default implementation supplies a stream of pseudorandom bits that are not suitable for cryptographic purposes.
Use the Random.secure constructor for cryptographic purposes.
To create a nonnegative random integer uniformly distributed in the range from 0, inclusive, to max, exclusive, use nextInt(int max).
var intValue = Random().nextInt(10); // Value is >= 0 and < 10.
intValue = Random().nextInt(100) + 50; // Value is >= 50 and < 150.
To create a nonnegative random floating point value uniformly distributed in the range from 0.0, inclusive, to 1.0, exclusive, use nextDouble.
var doubleValue = Random().nextDouble(); // Value is >= 0.0 and < 1.0.
doubleValue = Random().nextDouble() * 256; // Value is >= 0.0 and < 256.0.
To create a random Boolean value, use nextBool.
var boolValue = Random().nextBool(); // true or false, with equal chance.
Constructors
 Random([int? seed])

Creates a random number generator.
factory
 Random.secure()

Creates a cryptographically secure random number generator.
factory
Properties
 hashCode → int

The hash code for this object.
no setterinherited
 runtimeType → Type

A representation of the runtime type of the object.
no setterinherited
Methods

nextBool(
) → bool  Generates a random boolean value.

nextDouble(
) → double  Generates a nonnegative random floating point value uniformly distributed in the range from 0.0, inclusive, to 1.0, exclusive.

nextInt(
int max) → int 
Generates a nonnegative random integer uniformly distributed in the range
from 0, inclusive, to
max
, exclusive. 
noSuchMethod(
Invocation invocation) → dynamic 
Invoked when a nonexistent method or property is accessed.
inherited

toString(
) → String 
A string representation of this object.
inherited
Operators

operator ==(
Object other) → bool 
The equality operator.
inherited