mirror of
https://github.com/meteor/meteor.git
synced 2026-05-02 03:01:46 -04:00
26 lines
1.4 KiB
Markdown
26 lines
1.4 KiB
Markdown
# random
|
|
[Source code of released version](https://github.com/meteor/meteor/tree/master/packages/random) | [Source code of development version](https://github.com/meteor/meteor/tree/devel/packages/random)
|
|
***
|
|
|
|
The `random` package provides several functions for generating random
|
|
numbers. It uses a cryptographically strong pseudorandom number generator when
|
|
possible, but falls back to a weaker random number generator when
|
|
cryptographically strong randomness is not available (on older browsers or on
|
|
servers that don't have enough entropy to seed the cryptographically strong
|
|
generator).
|
|
|
|
- `Random.id([n])` - Returns a unique identifier, such as `"Jjwjg6gouWLXhMGKW"`, that is
|
|
likely to be unique in the whole world. The optional argument `n`
|
|
specifies the length of the identifier in characters and defaults to 17.
|
|
|
|
- `Random.secret([n])` - Returns a random string of printable characters with 6 bits of
|
|
entropy per character. The optional argument `n` specifies the length of
|
|
the secret string and defaults to 43 characters, or 256 bits of
|
|
entropy. Use `Random.secret` for security-critical secrets that are
|
|
intended for machine, rather than human, consumption.
|
|
|
|
- `Random.fraction()` - Returns a number between 0 and 1, like `Math.random`.
|
|
|
|
- `Random.choice(arrayOrString)` - Returns a random element of the given array or string.
|
|
|
|
- `Random.hexString(n)` - Returns a random string of `n` hexadecimal digits. |