Create index.ts

[bylickilabs]

No description provided.

[Copilot]

Pull Request Overview

Adds a new password-generation script with a simple CLI interface

• Implements generatePassword supporting uppercase, lowercase, digits, and special characters
• Throws an error if no character sets are selected
• Reads desired length from process.argv and outputs the generated password

Comments suppressed due to low confidence (3)

index.ts:12

• [nitpick] The error message is in German, while the rest of the script uses English. Consider standardizing to English for consistency, e.g., Error('Please select at least one character type.').

  if (!chars) throw new Error('Bitte mindestens einen Zeichentyp auswählen!');

index.ts:1

• [nitpick] Public function generatePassword would benefit from a JSDoc comment explaining parameters, return value, and behavior when flags are toggled.

function generatePassword(length: number, useUpper = true, useLower = true, useDigits = true, useSpecial = true): string {

index.ts:1

• This new utility lacks accompanying tests; consider adding unit tests to cover edge cases (e.g., zero length, all flags disabled, and maximum lengths).

function generatePassword(length: number, useUpper = true, useLower = true, useDigits = true, useSpecial = true): string {

[Copilot]

Math.random() is not cryptographically secure; consider using Node.js crypto.randomInt or crypto.getRandomValues to generate secure random indexes for password characters.

Suggested change

	password += chars.charAt(Math.floor(Math.random() * chars.length));
	password += chars.charAt(crypto.randomInt(0, chars.length));

[Copilot]

User input for password length should be validated to ensure it's a positive integer; currently invalid or negative values may produce unexpected results or default silently to 16.

Suggested change

	const len = Number(process.argv[2]) || 16;
	const inputLength = process.argv[2];
	const len = parseInt(inputLength, 10);
	if (isNaN(len) || len <= 0) {
	throw new Error("Invalid password length. Please provide a positive integer.");
	}