Fast-Id

Quickly generate tens of millions of IDs (maximum 75200000), either sequentially or randomly.

Installation

npm install fast-id --save

Usage

Sequentially

Sequentially generate ids from 1 to 100:

const ID = require('fast-id')(100);

const main = () => {
	let id;

	// Fetch the next id
	id = ID(); // 1
	console.log(id);

	// Fetch the next id
	id = ID(); // 2
	console.log(id);
};

main();

Randomly

Randomly generate ids from 1 to 100:

const ID = require('fast-id')(100, {isRandom: true});

const main = () => {
	let id;

	// Fetch the next id
	id = ID(); // a random id between 1 and 100
	console.log(id);

	// Fetch the next id
	id = ID(); // a random id between 1 and 100
	console.log(id);
};

main();

Performance

1. Sequentially

Sequentially generating 10000000 ids takes less than 1 second.

const max = 10000000;
require('fast-id')(max, {logging: true});

The result will be like below:

fast-id initialized. [max = 10000000, 0.738s]

2. Randomly

Randomly generating 10000000 ids takes less than 1.5 seconds.

const max = 10000000;
require('fast-id')(max, {isRandom: true, logging: true});

The result will be like below:

fast-id initialized. [max = 10000000, 1.321s]

License

MIT

Copyright (c) 2019, Owen Luke