NodeJS Program to Random ID Generator with Explanation
NodeJS
Easy
Node Basics & Modules
33 views
1 min read
79 words
This problem helps you practice core NodeJS fundamentals in a practical way. It builds intuition around random, crypto, generator. Let’s break it down step by step so you can implement it confidently.
Problem Statement
Generate a random id for meetcode logs using crypto.
Input Format
No input.
Output Format
Print one line.
Constraints
Prefer crypto.randomUUID when available.
Code Solution
This explanation is written for learning purposes and to help beginners understand the concept clearly.
const crypto = require('crypto');
const id = typeof crypto.randomUUID === 'function'
? crypto.randomUUID()
: crypto.randomBytes(16).toString('hex');
console.log('meetcode-' + id);
Output Example
No sample I/O is provided for this question.
Common Mistakes
- Misreading input/output format.
- Not handling constraints and edge cases.
- Off-by-one errors in loops.
- Forgetting to reset variables between test cases (if any).
Solution Guide
Problem
Generate a random id for meetcode logs using crypto.
Input / Output
Constraints
Prefer crypto.randomUUID when available.
Details
Common Mistakes
- Misreading input/output format.
- Not handling constraints and edge cases.
- Off-by-one errors in loops.
- Forgetting to reset variables between test cases (if any).
Official Solution
const crypto = require('crypto');
const id = typeof crypto.randomUUID === 'function'
? crypto.randomUUID()
: crypto.randomBytes(16).toString('hex');
console.log('meetcode-' + id);
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