Stop Using console.log in Production (Use This Instead)

Most developers use console.log() everywhere — but in production, it becomes a problem.

Why?

- No log levels (info, warn, error)
- Hard to search in logs
- Blocks the event loop (slower performance)
- Not structured (bad for monitoring tools)

Better approach:

Use a proper logger like Pino or Winston.

Example using Pino:

npm install pino

const logger = require('pino')();

logger.info('Server started');
logger.error('Something went wrong');

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Why this matters:

In real-world systems, logs are your only way to debug production issues.

Structured logs help you:
- Track errors faster
- Integrate with tools like Datadog, ELK
- Maintain clean, readable output

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Rule:

• Use console.log for local debugging
• Use a logger for production