Create a Simple Logger Module

Node.js

Technical Specification

Create a logger module that logs messages with timestamps and levels (info, warn, error).

Input/Output Samples

Input:logger.info("Server started")

Output:[INFO] 2025-01-01T... Server started

Optimal Logic Path

// logger.js
function log(level, msg) {
  const ts = new Date().toISOString();
  console.log(`[${level.toUpperCase()}] ${ts} - ${msg}`);
}
module.exports = {
  info: (msg) => log("info", msg),
  warn: (msg) => log("warn", msg),
  error: (msg) => log("error", msg),
};

Architectural Deep-Dive

We wrap console.log with a helper that formats messages consistently and expose level-specific functions.