Function randomString

randomString(length: number, options?: { charset?: string }): string
Generates a random string of a given length, drawn from a cryptographically secure source (globalThis.crypto.getRandomValues, the standard Web Crypto API available in both Node and browsers -- nothing here falls back to Math.random). Suitable for one-off IDs, tokens, or test fixtures.
Parameters
- length: number
  Number of characters to generate. Returns '' for a non-positive or non-integer length.
- options: { charset?: string } = {}
  - Optionalcharset?: string
    
    'alpha' (letters only), 'numeric' (digits only), 'alphanumeric' (the default), or any other string, which is used literally as the pool of characters to draw from (e.g. 'ABC123').
Returns string
A random string of the requested length, or '' if length or the resolved charset is empty.
Example
```
randomString(8); // e.g. 'aZ3kD9pQ' (alphanumeric by default)
randomString(6, { charset: 'numeric' }); // e.g. '482913'
randomString(4, { charset: 'ABC123' }); // custom charset, e.g. 'A1C3'
```
- Defined in text/randomString.ts:62