# Given a string, build its reverse by starting with an empty string and looping through each characte

Canonical URL: <https://datadriven.io/problems/given-a-string-build-its-reverse-by-starting-with-an-empty-0d7b0401>

Domain: Python · Difficulty: medium

## Problem

Given a string, build its reverse by starting with an empty string and looping through each character, prepending it (new = char + new). Print the reversed string.

## Related

- [All practice problems](https://datadriven.io/problems)
- [Mock interview mode](https://datadriven.io/interview/given-a-string-build-its-reverse-by-starting-with-an-empty-0d7b0401)
- [Python Interview Questions](https://datadriven.io/python-interview-questions)
- [Data Engineering Interview Prep Guide](https://datadriven.io/data-engineer-interview-prep)
- [Daily Challenge](https://datadriven.io/daily)

---

Source: DataDriven (https://datadriven.io). 100% free data engineering interview prep. Live code execution against Postgres 16, Python 3.11, and Spark sandboxes. No paywall, no premium tier, no signup gate.