Calculate or verify the credit card check digit (luhn)
A fast Luhn algorithm for validating credit cards
A validation module for browsers and Node.js to validate credit card numbers against the luhn algorithm.
A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm
Validation and control key generation for credit cards (and more) using Luhn algorithm
HANDLE CONFIGURATION ONCE AND FOR ALL
Collection of check digit algorithms implemented in JavaScript
Angular directives for formatting and validating credit card inputs
Calculates Luhn Mod N check values
Build a class attribute string quickly.
Lookup currency codes based on ISO 4217
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Claude Code Logger visualization management tool
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Validate card numbers by use of the luhncheck
A list of SPDX license identifiers
A full TypeScript EAN, UPC, IMEI, EID, ISBN & card validation tool
This repository pulls data from multiple channels and massage them into the Custom Data Format. The data is then published to [@vscode/web-custom-data](https://www.npmjs.com/package/@vscode/web-custom-data) package and consumed in VS Code's [HTML](https:/
Bridge local AI coding agents (Claude Code, Cursor, Gemini CLI) to messaging platforms (Feishu, DingTalk, Slack, Telegram, Discord, LINE, WeChat Work)
Turn approved specs into long-running autonomous implementation. A minimal, adaptable SDD harness with Agent Skills for Claude Code, Codex, Cursor, Copilot, Windsurf, OpenCode, Gemini CLI, and Antigravity.
A full TypeScript EAN, UPC, IMEI, EID, ISBN & card validation tool
angular credit card library
TypeScript definitions for luhn-generator
Fastest implementation of the Luhn algorithm