freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/reverse-a-string.md

---
id: a202eed8fc186c8434cb6d61
title: Reverse a String
challengeType: 5
forumTopicId: 16043
---

## Description
<section id='description'>
Reverse the provided string.
You may need to turn the string into an array before you can reverse it.
Your result must be a string.
</section>

## Instructions
<section id='instructions'>

</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>reverseString("hello")</code> should return a string.
    testString: assert(typeof reverseString("hello") === "string");
  - text: <code>reverseString("hello")</code> should become <code>"olleh"</code>.
    testString: assert(reverseString("hello") === "olleh");
  - text: <code>reverseString("Howdy")</code> should become <code>"ydwoH"</code>.
    testString: assert(reverseString("Howdy") === "ydwoH");
  - text: <code>reverseString("Greetings from Earth")</code> should return <code>"htraE morf sgniteerG"</code>.
    testString: assert(reverseString("Greetings from Earth") === "htraE morf sgniteerG");

```

</section>

## Challenge Seed
<section id='challengeSeed'>

<div id='js-seed'>

```js
function reverseString(str) {
  return str;
}

reverseString("hello");
```

</div>



</section>

## Solution
<section id='solution'>


```js
function reverseString(str) {
  return str.split('').reverse().join('');
}

reverseString("hello");

```

</section>