Versions

no-tabs

Disallow all tabs

This rule was deprecated in ESLint v8.53.0. Please use the corresponding rule in @stylistic/eslint-plugin-js.

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:

Open in Playground
/* eslint no-tabs: "error" */

var a 	= 2;

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

var x = 1; // 	 test

Examples of correct code for this rule:

Open in Playground
/* 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:

Open in Playground
/* eslint no-tabs: ["error", { allowIndentationTabs: true }] */

function test() {
	doSomething();
}

	// comment with leading indentation tab

When Not To Use It

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

Compatibility

Version

This rule was introduced in ESLint v3.2.0.

Resources

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