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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | 18x 175x 6x 169x 169x 1528x 1528x 1528x 18x | /**
* Generates a random string of the specified length using "safe" alphanumeric characters (i.e., "A-Z", "a-z" and
* "0-9"). Uses multiple entropy sources to improve randomness, but is NOT cryptographically secure.
*
* @example
*
* ```ts
* // Generate a random string with default length (8)
* const id = generateRandomString();
*
* // Generate a random string with custom length
* const longerId = generateRandomString(64);
* ```
*
* @param length - Defaults to 8. Must be a number between 8 and 128.
* @returns A random string of the specified length.
* @throws An error if length is not in the range between 8 and 128 (inclusive).
* @note NOT SUITABLE FOR CRYPTOGRAPHIC OR SECURITY-CRITICAL PURPOSES.
* For security-sensitive applications, use a cryptographically secure random generator instead.
*/
export const generateRandomString = (length = 8) => {
if (length < 8 || length > 128) {
throw new Error('IllegalArgument: length must be a number between 8 and 128');
}
const timestamp = Date.now();
return Array.from({ length }, () => {
const entropy = timestamp + performance.now();
const randomIndex = Math.floor(((Math.random() * entropy) % 1) * UNIQUE_CHARACTERS.length);
return UNIQUE_CHARACTERS.charAt(randomIndex);
}).join('');
};
const UNIQUE_CHARACTERS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
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