Installation
API
The Math.random function returns a floating-point, pseudo-random number in the range 0 to less than 1 (inclusive of 0, but not 1) with approximately uniform distribution over that range — which you can then scale to your desired range. The implementation selects the initial seed to the random number generation algorithm; it cannot be chosen or reset by the user. Oct 23, 2019 I don't believe recommending uuid for token or key generation is the right thing to do. Node has a simple enough API to generate random bytes, as @lauretagabriel pointed out in his comment above. I'm aware that uuid leverages this particular API, but you are essentially including a whole package (which you have no control over) and limiting yourself to 122 bits of randomness instead of writing. Mar 28, 2012 I'm writing this in the hopes that others may find this on Google. I had an issue that I'm using a v-for in Vue.js on a component, but in Vue 2.2+ you required:key to be set with a unique identifier. In my case the Array that it iterates over doesn't have any, so I had to generate one on demand (imagine a Bootstrap alerts manager component, e.g.).
generate([len], [keys])
![Generator Generator](/uploads/1/2/6/0/126087002/746231056.png)
Generate cryptographically strong pseudo-random string, with given length.
- len: the length of the generated string, default is 16
- keys: optional keys, default is base62, including: 0-9, a-z, A-Z
generateDigits([len])
Generate random digits, with given length. optional keys: 0-9
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- len: the length of the generated string, default is 16
generateBase30([len])
Generate random string that is easy to read by human, with given length.
optional keys: 1-9, A-Z exclude(E, G, I, J, O) for human read
- len: the length of the generated string, default is 16
Usage for JS
LICENSE
nodejs-random-string is licensed under the BSD license.
This module allows you to generate length-efficient unique IDs, that can be used instead of UUID (v4). The generator uses a limited dictionary space of characters and generates IDs of increasing length to allow for Length-Efficient ids as opposed to UUIDs, that always generate IDs of length 36 or 48 from the getgo.
Given a dictionary size of M and an required ID length <= n, the generator has an output space of:
Node Js Random Seed
This provides very length-efficient IDs even for modest lengths. For example, if you wish to generate IDs of length no greater than 6, then the generator's can output as many as 57,731,386,986 (~57 Billion) unique ids.
Js Random Int
- Import the module:
- Instantiate Id Generator:
- Generate Counter-based ID:
- Generate Random ID: