Random

Pseudo-random number generation.

Added in 0.5.0

No other changes yet.

import Random from "random"

Types

Type declarations included in the Random module.

Random.Random

type Random

Values

Functions for working with pseudo-random number generators.

Random.make

Added in 0.5.0

No other changes yet.

make : Int64 -> Random

Creates a new pseudo-random number generator with the given seed.

Parameters:

param	type	description
`seed`	`Int64`	The seed for the pseudo-random number generator

Returns:

type	description
`Random`	The pseudo-random number generator

Random.makeUnseeded

Added in 0.5.0

No other changes yet.

makeUnseeded : () -> Result<Random, Exception>

Creates a new pseudo-random number generator with a random seed.

Returns:

type	description
`Result<Random, Exception>`	`Ok(generator)` of a pseudo-random number generator if successful or `Err(exception)` otherwise

Random.nextInt32

Added in 0.5.0

No other changes yet.

nextInt32 : Random -> Int32

Generates a random 32-bit integer from the given pseudo-random number generator.

Parameters:

param	type	description
`random`	`Random`	The pseudo-random number generator to use

Returns:

type	description
`Int32`	The randomly generated number

Random.nextInt64

Added in 0.5.0

No other changes yet.

nextInt64 : Random -> Int64

Generates a random 64-bit integer from the given pseudo-random number generator.

Parameters:

param	type	description
`random`	`Random`	The pseudo-random number generator to use

Returns:

type	description
`Int64`	The randomly generated number

Random.nextInt32InRange

Added in 0.5.0

No other changes yet.

nextInt32InRange : (Random, Int32, Int32) -> Int32

Generates a random 32-bit integer from the given pseudo-random number generator from a uniform distribution in the given range.

Parameters:

param	type	description
`random`	`Random`	The pseudo-random number generator to use
`low`	`Int32`	The lower bound of the range (inclusive)
`high`	`Int32`	The upper bound of the range (exclusive)

Returns:

type	description
`Int32`	The randomly generated number

Random.nextInt64InRange

Added in 0.5.0

No other changes yet.

nextInt64InRange : (Random, Int64, Int64) -> Int64

Generates a random 64-bit integer from the given pseudo-random number generator from a uniform distribution in the given range.

Parameters:

param	type	description
`random`	`Random`	The pseudo-random number generator to use
`low`	`Int64`	The lower bound of the range (inclusive)
`high`	`Int64`	The upper bound of the range (exclusive)

Returns:

type	description
`Int64`	The randomly generated number