});

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

            return res.status(200).json({ status: 200, message: 'success' });

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    }

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    server.use(function(req, res, next) { console.log('------------------------------------------------'); next(); });

Close

disallow the use of console (no-console)

In JavaScript that is designed to be executed in the browser, it's considered a best practice to avoid using methods on console. Such messages are considered to be for debugging purposes and therefore not suitable to ship to the client. In general, calls using console should be stripped before being pushed to production.

console.log("Made it here.");
console.error("That shouldn't have happened.");

Rule Details

This rule disallows calls to methods of the console object.

Examples of incorrect code for this rule:

/*eslint no-console: "error"*/

console.log("Log a debug level message.");
console.warn("Log a warn level message.");
console.error("Log an error level message.");

Examples of correct code for this rule:

/*eslint no-console: "error"*/

// custom console
Console.log("Hello world!");

Options

This rule has an object option for exceptions:

• "allow" has an array of strings which are allowed methods of the console object

Examples of additional correct code for this rule with a sample { "allow": ["warn", "error"] } option:

/*eslint no-console: ["error", { allow: ["warn", "error"] }] */

console.warn("Log a warn level message.");
console.error("Log an error level message.");

When Not To Use It

If you're using Node.js, however, console is used to output information to the user and so is not strictly used for debugging purposes. If you are developing for Node.js then you most likely do not want this rule enabled.

Related Rules

• [no-alert](no-alert.md)
• [no-debugger](no-debugger.md) Source: http://eslint.org/docs/rules/

        access_token: token,

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    const username = req.body.username;

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    const password = req.body.password;

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    });

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    if (accessToken) {

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

        }

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

        { field: 'name', input: req.body.name, rules: { notEmpty: true, type: 'string' } }

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    log.info('enabling cross origin resource sharing for everyone');

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    log.info('%s server started', settings.environment, { server: this.address(), environment: settings.environment });

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

        return res.status(401).json({ status: 401, message: 'Unauth­orized' });

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

        return next();

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    req.app.get('db').action.getRecords({ table: 'categories', orderBy: orderBy, limit: limit }, function(error, data) {

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

        return res.json(data);

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    const categoryData = [

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    getCategories.getCategories(req, res);

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/

    const orderBy = dbHelpers.getOrderByQuery(req.query.sort);

Close

disallow all tabs (no-tabs)

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:

var a /t= 2;

/**
* /t/t it's a test function
*/
function test(){}

var x = 1; // /t test

Examples of correct code for this rule:

var a = 2;

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

var x = 1; // test

When Not To Use It

If you have established a standard where having tabs is fine.

Compatibility

• JSCS: disallowTabs Source: http://eslint.org/docs/rules/