Class Random

Wrapper around an instance of a pure-rand's random number generator offering a simpler interface to deal with random with impure patterns

Index

Constructors

Properties

internalRng DBL_DIVISOR DBL_FACTOR MAX_INT MIN_INT

Methods

clone next nextArrayInt nextBigInt nextBoolean nextDouble nextInt

Constructors

constructor

new Random(sourceRng): Random
Create a mutable random number generator by cloning the passed one and mutate it
Parameters
- sourceRng: RandomGenerator
  Immutable random generator from pure-rand library, will not be altered (a clone will be)
Returns Random
- Defined in packages/fast-check/src/random/generator/Random.ts:26

Properties

`Private` internalRng

internalRng: RandomGenerator

`Static` `Private` DBL_DIVISOR

DBL_DIVISOR: number = ...

`Static` `Private` DBL_FACTOR

DBL_FACTOR: number = ...

`Static` `Private` MAX_INT

MAX_INT: number = ...

`Static` `Private` MIN_INT

MIN_INT: number = ...

Methods

clone

clone(): Random
Clone the random number generator

Returns Random
- Defined in packages/fast-check/src/random/generator/Random.ts:33

next

next(bits): number
Generate an integer having bits random bits
Parameters
- bits: number
  Number of bits to generate
Returns number
- Defined in packages/fast-check/src/random/generator/Random.ts:41

nextArrayInt

nextArrayInt(min, max): {
data: number[];
sign: 1 | -1;
}
Generate a random ArrayInt between min (included) and max (included)
Parameters
- min: {
  data: number[];
  sign: 1 | -1;
  }
  Minimal ArrayInt value
  - data: number[]
  - sign: 1 | -1
- max: {
  data: number[];
  sign: 1 | -1;
  }
  Maximal ArrayInt value
  - data: number[]
  - sign: 1 | -1
Returns {
data: number[];
sign: 1 | -1;
}
- data: number[]
- sign: 1 | -1
- Defined in packages/fast-check/src/random/generator/Random.ts:86

nextBigInt

nextBigInt(min, max): bigint
Generate a random bigint between min (included) and max (included)
Parameters
- min: bigint
  Minimal bigint value
- max: bigint
  Maximal bigint value
Returns bigint
- Defined in packages/fast-check/src/random/generator/Random.ts:77

nextBoolean

nextBoolean(): boolean
Generate a random boolean

Returns boolean
- Defined in packages/fast-check/src/random/generator/Random.ts:49

nextDouble

nextDouble(): number
Generate a random floating point number between 0.0 (included) and 1.0 (excluded)

Returns number
- Defined in packages/fast-check/src/random/generator/Random.ts:96

nextInt

nextInt(): number
Generate a random integer (32 bits)

Returns number
- Defined in packages/fast-check/src/random/generator/Random.ts:56
nextInt(min, max): number
Generate a random integer between min (included) and max (included)
Parameters
- min: number
  Minimal integer value
- max: number
  Maximal integer value
Returns number
- Defined in packages/fast-check/src/random/generator/Random.ts:63

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