---
title: "What is eval() in JavaScript?"  
description: "What is eval() in JavaScript?"  
author: "Amit Singh"  
published: 2011-03-18  
updated: 2020-09-17  
canonical: https://www.mindstick.com/interview/532/what-is-eval-in-javascript  
category: "javascript"  
tags: ["javascript"]  
reading_time: 1 minute  

---

# What is eval() in JavaScript?

The eval() method is incredibly powerful allowing us to execute snippets of code during execution in JavaScript.\
Example:\
<script type="text/javascript">\
var USA_Texas_Austin = "521,289";\
document.write("Population is "+eval("USA_"+"Texas_"+"Austin"));\
</script>\
\
Output:\
Population is 521,289

## Answers

### Answer by Amit Singh

The eval() method is incredibly powerful allowing us to execute snippets of code during execution in JavaScript.\
Example:\
<script type="text/javascript">\
var USA_Texas_Austin = "521,289";\
document.write("Population is "+eval("USA_"+"Texas_"+"Austin"));\
</script>\
\
Output:\
Population is 521,289


---

Original Source: https://www.mindstick.com/interview/532/what-is-eval-in-javascript

Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.