89 lines
2.8 KiB
Plaintext
89 lines
2.8 KiB
Plaintext
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{{alias}}( [options] )
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Returns an iterator for generating pseudorandom integers on the interval
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`[1, 2147483646]`.
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If an environment supports Symbol.iterator, the returned iterator is
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iterable.
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This pseudorandom number generator (PRNG) is a linear congruential
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pseudorandom number generator (LCG) whose output is shuffled using the Bays-
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Durham algorithm. The shuffle step considerably strengthens the "randomness
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quality" of a simple LCG's output.
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The generator has a period of approximately `2.1e9`.
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An LCG is fast and uses little memory. On the other hand, because the
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generator is a simple LCG, the generator has recognized shortcomings. By
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today's PRNG standards, the generator's period is relatively short. In
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general, this generator is unsuitable for Monte Carlo simulations and
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cryptographic applications.
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Parameters
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----------
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options: Object (optional)
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Options.
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options.normalized: boolean (optional)
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Boolean indicating whether to return pseudorandom numbers on the
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interval `[0,1)`.
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options.seed: integer|ArrayLikeObject<integer> (optional)
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Pseudorandom number generator seed. The seed may be either a positive
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signed 32-bit integer or, for arbitrary length seeds, an array-like
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object containing positive signed 32-bit integers.
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options.state: Int32Array (optional)
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Pseudorandom number generator state. If provided, the `seed` option is
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ignored.
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options.copy: boolean (optional)
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Boolean indicating whether to copy a provided pseudorandom number
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generator state. Setting this option to `false` allows sharing state
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between two or more pseudorandom number generators. Setting this option
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to `true` ensures that a returned iterator has exclusive control over
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its internal state. Default: true.
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options.iter: integer (optional)
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Number of iterations.
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Returns
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-------
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iterator: Object
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Iterator.
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iterator.next(): Function
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Returns an iterator protocol-compliant object containing the next
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iterated value (if one exists) and a boolean flag indicating whether the
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iterator is finished.
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iterator.return( [value] ): Function
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Finishes an iterator and returns a provided value.
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iterator.seed: Int32Array
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Pseudorandom number generator seed.
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iterator.seedLength: integer
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Length of generator seed.
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iterator.state: Int32Array
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Generator state.
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iterator.stateLength: integer
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Length of generator state.
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iterator.byteLength: integer
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Size (in bytes) of generator state.
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Examples
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--------
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> var it = {{alias}}();
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> var r = it.next().value
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<number>
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> r = it.next().value
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<number>
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See Also
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--------
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