js-utility-method

Generator Methods

generateCode

Generates a random code — numeric, alphabetic, or alphanumeric — with a customizable length. Useful for creating OTPs, verification codes, or short unique identifiers.

Parameters

Name	Type	Description
type	"number" | "string" | "all" (optional)	Type of characters to include in the code. Default: "all".
length	number (optional)	Length of the generated code. Default: 6.

Returns

string — The generated random code.

Example

import { generateCode } from "js-utility-method";

generateCode(); // => "aZ3kLp"
generateCode({ type: "number" }); // => "482193"
generateCode({ type: "string", length: 8 }); // => "aBcDeFgH"
generateCode({ type: "all", length: 10 }); // => "Ab92dLzPq7"

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generateStrongPassword

Generates a strong, randomized password with customizable character types. Includes options for numbers, lowercase, uppercase, and symbols.

Parameters

Name	Type	Description
length	number (optional)	Length of the generated password (default: 12).
numbers	boolean (optional)	Include numeric characters (default: true).
lowercase	boolean (optional)	Include lowercase letters (default: true).
uppercase	boolean (optional)	Include uppercase letters (default: true).
symbols	boolean (optional)	Include symbol characters (default: true).

Returns

string — The generated strong password.

Example

import { generateStrongPassword } from "js-utility-method";

generateStrongPassword();
// => "aK#9gT!2Lm$P"

generateStrongPassword({ length: 16 });
// => "Tp9!fZ@#wG7b$kQ1"

generateStrongPassword({ numbers: false, symbols: false });
// => "aBcDeFgHiJKlMnO"

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generateUUID

Generates a random UUID v4 string — ideal for creating unique identifiers, temporary IDs, or tracking tokens. Lightweight and dependency-free, follows the standard UUID v4 format.

Parameters

This method does not require any parameters.

Returns

string — A UUID v4 string in the format xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx.

Example

import { generateUUID } from "js-utility-method";

generateUUID();
// => "3b12f1df-5232-4e8b-9b2f-7f6d9f8c8e9a"

generateUUID();
// => "a7f9c1d2-3b5e-4c7d-8a1f-2b6d9e0f3a4b"