NodeJS Program to Read ENV Variable with Explanation
NodeJS
Easy
Node Basics & Modules
29 views
1 min read
84 words
This problem helps you practice core NodeJS fundamentals in a practical way. It builds intuition around env, read, meetcode. Let’s break it down step by step so you can implement it confidently.
Problem Statement
Read MEETCODE_NAME from process.env and print it (use fallback if missing).
Input Format
No input.
Output Format
Print one line.
Constraints
If env not set, print 'meetcode'.
Code Solution
This explanation is written for learning purposes and to help beginners understand the concept clearly.
const name = (process.env.MEETCODE_NAME || 'meetcode').trim() || 'meetcode';
console.log(name);
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
Read MEETCODE_NAME from process.env and print it (use fallback if missing).
Input / Output
Constraints
If env not set, print 'meetcode'.
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 name = (process.env.MEETCODE_NAME || 'meetcode').trim() || 'meetcode';
console.log(name);
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