---
title: no-tabs
rule_type: layout
---
Some style guides don't allow the use of tab characters at all, including within comments.

## Rule Details

This rule looks for tabs anywhere inside a file: code, comments or anything else.

Examples of **incorrect** code for this rule:

<!-- markdownlint-capture -->
<!-- markdownlint-disable MD010 -->
::: incorrect

```js
/* eslint no-tabs: "error" */

var a 	= 2;

/**
* 		 it's a test function
*/
function test(){}

var x = 1; // 	 test
```

:::
<!-- markdownlint-restore -->

Examples of **correct** code for this rule:

::: correct

```js
/* eslint no-tabs: "error" */

var a = 2;

/**
* it's a test function
*/
function test(){}

var x = 1; // test
```

:::

### Options

This rule has an optional object option with the following properties:

* `allowIndentationTabs` (default: false): If this is set to true, then the rule will not report tabs used for indentation.

#### allowIndentationTabs

Examples of **correct** code for this rule with the `allowIndentationTabs: true` option:

<!-- markdownlint-capture -->
<!-- markdownlint-disable MD010 -->
::: correct

```js
/* eslint no-tabs: ["error", { allowIndentationTabs: true }] */

function test() {
	doSomething();
}

	// comment with leading indentation tab
```

:::
<!-- markdownlint-restore -->

## When Not To Use It

If you have established a standard where having tabs is fine, then you can disable this rule.

## Compatibility

* **JSCS**: [disallowTabs](https://jscs-dev.github.io/rule/disallowTabs)