89 lines
2.7 KiB
Plaintext
89 lines
2.7 KiB
Plaintext
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{{alias}}( [options] )
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Create an iterator for generating uniformly distributed pseudorandom numbers
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between 0 and 1.
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The default underlying pseudorandom number generator (PRNG) *may* change in
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the future. If exact reproducibility is required, either explicitly specify
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a PRNG via the `name` option or use an underlying PRNG directly.
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If an environment supports Symbol.iterator, the returned iterator is
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iterable.
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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.name: string (optional)
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Name of a supported pseudorandom number generator (PRNG), which will
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serve as the underlying source of pseudorandom numbers. The following
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PRNGs are supported:
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- mt19937: 32-bit Mersenne Twister.
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- minstd: linear congruential PRNG based on Park and Miller.
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- minstd-shuffle: linear congruential PRNG whose output is shuffled.
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Default: `'mt19937'`.
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options.seed: any (optional)
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Pseudorandom number generator seed. Valid seed values vary according to
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the underlying PRNG.
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options.state: any (optional)
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Pseudorandom number generator state. Valid state values vary according
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to the underling PRNG. If provided, the `seed` option is 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 generator 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.PRNG: Function
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Underlying pseudorandom number generator.
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iterator.seed: any
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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: any
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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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