Generate a cryptographically strong random string. 

Generate a cryptographically strong random string

sindresorhus

crypto-random-string

import {MergeExclusive} from 'type-fest';

	Use only characters from a predefined set of allowed characters.

	Cannot be set at the same time as the `characters` option.

	The `distinguishable` set contains only uppercase characters that are not easily confused: `CDEHKMPRTUWXY012458`. It can be useful if you need to print out a short string that you'd like users to read and type back in with minimal errors. For example, reading a code off of a screen that needs to be typed into a phone to connect two devices.

	The `ascii-printable` set contains all [printable ASCII characters](https://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters): ``!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~`` Useful for generating passwords where all possible ASCII characters should be used.

	The `alphanumeric` set contains uppercase letters, lowercase letters, and digits: `ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789`. Useful for generating [nonce](https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/nonce) values.

	cryptoRandomString({length: 10, type: 'base64'});

	cryptoRandomString({length: 10, type: 'url-safe'});

	cryptoRandomString({length: 10, type: 'numeric'});

	cryptoRandomString({length: 6, type: 'distinguishable'});

	cryptoRandomString({length: 10, type: 'ascii-printable'});

	cryptoRandomString({length: 10, type: 'alphanumeric'});

	Use only characters from a custom set of allowed characters.

	Cannot be set at the same time as the `type` option.

	cryptoRandomString({length: 10, characters: '0123456789'});

	type Options = BaseOptions & MergeExclusive<TypeOption, CharactersOption>;

	Generate a [cryptographically strong](https://en.wikipedia.org/wiki/Strong_cryptography) random string.

	import cryptoRandomString = require('crypto-random-string');

	(options?: cryptoRandomString.Options): string;

	(options: cryptoRandomString.Options): string;

	Asynchronously generate a [cryptographically strong](https://en.wikipedia.org/wiki/Strong_cryptography) random string.

	@returns A promise which resolves to a randomized string.

	await cryptoRandomString.async({length: 10});

	async(options?: cryptoRandomString.Options): Promise<string>;

	async(options: cryptoRandomString.Options): Promise<string>;

	"description": "Generate a cryptographically strong random string",

	"repository": "sindresorhus/crypto-random-string",

# crypto-random-string [![Build Status](https://travis-ci.org/sindresorhus/crypto-random-string.svg?branch=master)](https://travis-ci.org/sindresorhus/crypto-random-string)

> Generate a [cryptographically strong](https://en.wikipedia.org/wiki/Strong_cryptography) random string

Can be useful for creating an identifier, slug, salt, PIN code, fixture, etc.

const cryptoRandomString = require('crypto-random-string');

cryptoRandomString({length: 10, type: 'base64'});

cryptoRandomString({length: 10, type: 'url-safe'});

cryptoRandomString({length: 10, type: 'numeric'});

cryptoRandomString({length: 6, type: 'distinguishable'});

cryptoRandomString({length: 10, type: 'ascii-printable'});

cryptoRandomString({length: 10, type: 'alphanumeric'});

cryptoRandomString({length: 10, characters: 'abc'});

Returns a randomized string. [Hex](https://en.wikipedia.org/wiki/Hexadecimal) by default.

Returns a promise which resolves to a randomized string. [Hex](https://en.wikipedia.org/wiki/Hexadecimal) by default.

Use only characters from a predefined set of allowed characters.

Cannot be set at the same time as the `characters` option.

The `distinguishable` set contains only uppercase characters that are not easily confused: `CDEHKMPRTUWXY012458`. It can be useful if you need to print out a short string that you'd like users to read and type back in with minimal errors. For example, reading a code off of a screen that needs to be typed into a phone to connect two devices.

The `ascii-printable` set contains all [printable ASCII characters](https://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters): ``!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~`` Useful for generating passwords where all possible ASCII characters should be used.

The `alphanumeric` set contains uppercase letters, lowercase letters, and digits: `ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789`. Useful for generating [nonce](https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/nonce) values.

Use only characters from a custom set of allowed characters.

Cannot be set at the same time as the `type` option.

- [random-int](https://github.com/sindresorhus/random-int) - Generate a random integer

- [random-float](https://github.com/sindresorhus/random-float) - Generate a random float

- [random-item](https://github.com/sindresorhus/random-item) - Get a random item from an array

- [random-boolean](https://github.com/arthurvr/random-boolean) - Get a random boolean

- [random-obj-key](https://github.com/sindresorhus/random-obj-key) - Get a random key from an object

- [random-obj-prop](https://github.com/sindresorhus/random-obj-prop) - Get a random property from an object

- [unique-random](https://github.com/sindresorhus/unique-random) - Generate random numbers that are consecutively unique

		@@ -87,3 +87,3 @@ import {MergeExclusive} from 'type-fest';
		*/
		(options?: cryptoRandomString.Options): string;
		(options: cryptoRandomString.Options): string;

		@@ -103,5 +103,5 @@ /**
		*/
		async(options?: cryptoRandomString.Options): Promise<string>;
		async(options: cryptoRandomString.Options): Promise<string>;
		}

		export = cryptoRandomString;

		{
		"name": "crypto-random-string",
		"version": "3.3.0",
		"version": "3.3.1",
		"description": "Generate a cryptographically strong random string",
		@@ -5,0 +5,0 @@ "license": "MIT",

		@@ -1,2 +0,2 @@
		# crypto-random-string [![Build Status](https://travis-ci.org/sindresorhus/crypto-random-string.svg?branch=master)](https://travis-ci.org/sindresorhus/crypto-random-string)
		# crypto-random-string

		@@ -3,0 +3,0 @@ > Generate a [cryptographically strong](https://en.wikipedia.org/wiki/Strong_cryptography) random string

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