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30-seconds-of-code/snippets/indentString.md
2022-06-08 09:34:23 +03:00

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---
title: Indent string
tags: string
expertise: beginner
cover: blog_images/clutter.jpg
firstSeen: 2018-09-24T22:14:27+03:00
lastUpdated: 2020-11-01T20:50:57+02:00
---
Indents each line in the provided string.
- Use `String.prototype.replace()` and a regular expression to add the character specified by `indent` `count` times at the start of each line.
- Omit the third argument, `indent`, to use a default indentation character of `' '`.
```js
const indentString = (str, count, indent = ' ') =>
str.replace(/^/gm, indent.repeat(count));
```
```js
indentString('Lorem\nIpsum', 2); // ' Lorem\n Ipsum'
indentString('Lorem\nIpsum', 2, '_'); // '__Lorem\n__Ipsum'
```