NodeJS Program to Progress Bar Idea with Explanation
NodeJS
Hard
CLI Tools & Debugging
20 views
1 min read
80 words
This problem helps you practice core NodeJS fundamentals in a practical way. It builds intuition around progress, bar, idea. Let’s break it down step by step so you can implement it confidently.
Problem Statement
Print a simple progress bar from 0 to 100 in steps.
Input Format
No input.
Output Format
Print multiple lines.
Constraints
Use carriage return \\r.
Code Solution
This explanation is written for learning purposes and to help beginners understand the concept clearly.
let p = 0;
const id = setInterval(() => {
const bar = '#'.repeat(Math.floor(p / 10)).padEnd(10, '-');
process.stdout.write('\
[' + bar + '] ' + p + '% meetcode');
p += 10;
if (p > 100) {
clearInterval(id);
process.stdout.write('\
');
}
}, 30);
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
Print a simple progress bar from 0 to 100 in steps.
Input / Output
Output
Print multiple lines.
Constraints
Use carriage return \\r.
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
let p = 0;
const id = setInterval(() => {
const bar = '#'.repeat(Math.floor(p / 10)).padEnd(10, '-');
process.stdout.write('\
[' + bar + '] ' + p + '% meetcode');
p += 10;
if (p > 100) {
clearInterval(id);
process.stdout.write('\
');
}
}, 30);
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