Function generateBankingCode

src/index.ts:66–90

(options: GenerateOptions = {})

}

function generateBankingCode(options: GenerateOptions = {}): string {
	const length: CodeLength = options.length === 4 ? 4 : 6
	const digits = getAllowedDigits(options)
	const rng = getRng({ ...options, mode: 'banking' })

	const maxAttempts = 100
	for (let i = 0; i < maxAttempts; i++) {
		const result: string[] = []
		while (result.length < length) {
			const d = pickDigit(digits, rng)
			if (!result.includes(d)) {
				result.push(d)
			}
		}
		const code = fromDigits(result)
		if (isCodeAllowed(code, { ...options, mode: 'banking' })) {
			return code
		}
	}

	const fallback = fromDigits(
		Array.from({ length }, () => pickDigit(digits, rng))
	)
	return fallback.slice(0, length)
}

export function isHumanFriendly(
	code: string,