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src/server/passport/local.js

Summary

Maintainability
A
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Unexpected function expression.
Open

  .then(function (user) {
Severity: Minor
Found in src/server/passport/local.js by eslint

Suggest using arrow functions as callbacks. (prefer-arrow-callback)

Arrow functions are suited to callbacks, because:

  • this keywords in arrow functions bind to the upper scope's.
  • The notation of the arrow function is shorter than function expression's.

Rule Details

This rule is aimed to flag usage of function expressions in an argument list.

The following patterns are considered problems:

/*eslint prefer-arrow-callback: "error"*/

foo(function(a) { return a; });
foo(function() { return this.a; }.bind(this));

The following patterns are not considered problems:

/*eslint prefer-arrow-callback: "error"*/
/*eslint-env es6*/

foo(a => a);
foo(function*() { yield; });

// this is not a callback.
var foo = function foo(a) { return a; };

// using `this` without `.bind(this)`.
foo(function() { return this.a; });

// recursively.
foo(function bar(n) { return n && n + bar(n - 1); });

Options

This rule takes one optional argument, an object which is an options object.

allowNamedFunctions

This is a boolean option and it is false by default. When set to true, the rule doesn't warn on named functions used as callbacks.

Examples of correct code for the { "allowNamedFunctions": true } option:

/*eslint prefer-arrow-callback: ["error", { "allowNamedFunctions": true }]*/

foo(function bar() {});

allowUnboundThis

This is a boolean option and it is true by default. When set to false, this option allows the use of this without restriction and checks for dynamically assigned this values such as when using Array.prototype.map with a context argument. Normally, the rule will flag the use of this whenever a function does not use bind() to specify the value of this constantly.

Examples of incorrect code for the { "allowUnboundThis": false } option:

/*eslint prefer-arrow-callback: ["error", { "allowUnboundThis": false }]*/
/*eslint-env es6*/

foo(function() { this.a; });

foo(function() { (() => this); });

someArray.map(function (itm) { return this.doSomething(itm); }, someObject);

When Not To Use It

This rule should not be used in ES3/5 environments.

In ES2015 (ES6) or later, if you don't want to be notified about function expressions in an argument list, you can safely disable this rule. Source: http://eslint.org/docs/rules/

Unexpected space before *.
Open

  co(function *() {
Severity: Minor
Found in src/server/passport/local.js by eslint

Enforce spacing around the * in generator functions (generator-star-spacing)

Generators are a new type of function in ECMAScript 6 that can return multiple values over time. These special functions are indicated by placing an * after the function keyword.

Here is an example of a generator function:

/*eslint-env es6*/

function* generator() {
    yield "44";
    yield "55";
}

This is also valid:

/*eslint-env es6*/

function *generator() {
    yield "44";
    yield "55";
}

This is valid as well:

/*eslint-env es6*/

function * generator() {
    yield "44";
    yield "55";
}

To keep a sense of consistency when using generators this rule enforces a single position for the *.

Rule Details

This rule aims to enforce spacing around the * of generator functions.

Options

The rule takes one option, an object, which has two keys before and after having boolean values true or false.

  • before enforces spacing between the * and the function keyword. If it is true, a space is required, otherwise spaces are disallowed.

In object literal shorthand methods, spacing before the * is not checked, as they lack a function keyword.

  • after enforces spacing between the * and the function name (or the opening parenthesis for anonymous generator functions). If it is true, a space is required, otherwise spaces are disallowed.

The default is {"before": true, "after": false}.

An example configuration:

"generator-star-spacing": ["error", {"before": true, "after": false}]

And the option has shorthand as a string keyword:

  • {"before": true, "after": false} → "before"
  • {"before": false, "after": true} → "after"
  • {"before": true, "after": true} → "both"
  • {"before": false, "after": false} → "neither"

An example of shorthand configuration:

"generator-star-spacing": ["error", "after"]

Examples

before

Examples of correct code for this rule with the "before" option:

/*eslint generator-star-spacing: ["error", {"before": true, "after": false}]*/
/*eslint-env es6*/

function *generator() {}

var anonymous = function *() {};

var shorthand = { *generator() {} };

after

Examples of correct code for this rule with the "after" option:

/*eslint generator-star-spacing: ["error", {"before": false, "after": true}]*/
/*eslint-env es6*/

function* generator() {}

var anonymous = function* () {};

var shorthand = { * generator() {} };

both

Examples of correct code for this rule with the "both" option:

/*eslint generator-star-spacing: ["error", {"before": true, "after": true}]*/
/*eslint-env es6*/

function * generator() {}

var anonymous = function * () {};

var shorthand = { * generator() {} };

neither

Examples of correct code for this rule with the "neither" option:

/*eslint generator-star-spacing: ["error", {"before": false, "after": false}]*/
/*eslint-env es6*/

function*generator() {}

var anonymous = function*() {};

var shorthand = { *generator() {} };

When Not To Use It

If your project will not be using generators or you are not concerned with spacing consistency, you do not need this rule.

Further Reading

Unexpected function expression.
Open

  .catch(function (err) {
Severity: Minor
Found in src/server/passport/local.js by eslint

Suggest using arrow functions as callbacks. (prefer-arrow-callback)

Arrow functions are suited to callbacks, because:

  • this keywords in arrow functions bind to the upper scope's.
  • The notation of the arrow function is shorter than function expression's.

Rule Details

This rule is aimed to flag usage of function expressions in an argument list.

The following patterns are considered problems:

/*eslint prefer-arrow-callback: "error"*/

foo(function(a) { return a; });
foo(function() { return this.a; }.bind(this));

The following patterns are not considered problems:

/*eslint prefer-arrow-callback: "error"*/
/*eslint-env es6*/

foo(a => a);
foo(function*() { yield; });

// this is not a callback.
var foo = function foo(a) { return a; };

// using `this` without `.bind(this)`.
foo(function() { return this.a; });

// recursively.
foo(function bar(n) { return n && n + bar(n - 1); });

Options

This rule takes one optional argument, an object which is an options object.

allowNamedFunctions

This is a boolean option and it is false by default. When set to true, the rule doesn't warn on named functions used as callbacks.

Examples of correct code for the { "allowNamedFunctions": true } option:

/*eslint prefer-arrow-callback: ["error", { "allowNamedFunctions": true }]*/

foo(function bar() {});

allowUnboundThis

This is a boolean option and it is true by default. When set to false, this option allows the use of this without restriction and checks for dynamically assigned this values such as when using Array.prototype.map with a context argument. Normally, the rule will flag the use of this whenever a function does not use bind() to specify the value of this constantly.

Examples of incorrect code for the { "allowUnboundThis": false } option:

/*eslint prefer-arrow-callback: ["error", { "allowUnboundThis": false }]*/
/*eslint-env es6*/

foo(function() { this.a; });

foo(function() { (() => this); });

someArray.map(function (itm) { return this.doSomething(itm); }, someObject);

When Not To Use It

This rule should not be used in ES3/5 environments.

In ES2015 (ES6) or later, if you don't want to be notified about function expressions in an argument list, you can safely disable this rule. Source: http://eslint.org/docs/rules/

Unexpected function expression.
Open

}, function (email, passwd, done) {
Severity: Minor
Found in src/server/passport/local.js by eslint

Suggest using arrow functions as callbacks. (prefer-arrow-callback)

Arrow functions are suited to callbacks, because:

  • this keywords in arrow functions bind to the upper scope's.
  • The notation of the arrow function is shorter than function expression's.

Rule Details

This rule is aimed to flag usage of function expressions in an argument list.

The following patterns are considered problems:

/*eslint prefer-arrow-callback: "error"*/

foo(function(a) { return a; });
foo(function() { return this.a; }.bind(this));

The following patterns are not considered problems:

/*eslint prefer-arrow-callback: "error"*/
/*eslint-env es6*/

foo(a => a);
foo(function*() { yield; });

// this is not a callback.
var foo = function foo(a) { return a; };

// using `this` without `.bind(this)`.
foo(function() { return this.a; });

// recursively.
foo(function bar(n) { return n && n + bar(n - 1); });

Options

This rule takes one optional argument, an object which is an options object.

allowNamedFunctions

This is a boolean option and it is false by default. When set to true, the rule doesn't warn on named functions used as callbacks.

Examples of correct code for the { "allowNamedFunctions": true } option:

/*eslint prefer-arrow-callback: ["error", { "allowNamedFunctions": true }]*/

foo(function bar() {});

allowUnboundThis

This is a boolean option and it is true by default. When set to false, this option allows the use of this without restriction and checks for dynamically assigned this values such as when using Array.prototype.map with a context argument. Normally, the rule will flag the use of this whenever a function does not use bind() to specify the value of this constantly.

Examples of incorrect code for the { "allowUnboundThis": false } option:

/*eslint prefer-arrow-callback: ["error", { "allowUnboundThis": false }]*/
/*eslint-env es6*/

foo(function() { this.a; });

foo(function() { (() => this); });

someArray.map(function (itm) { return this.doSomething(itm); }, someObject);

When Not To Use It

This rule should not be used in ES3/5 environments.

In ES2015 (ES6) or later, if you don't want to be notified about function expressions in an argument list, you can safely disable this rule. Source: http://eslint.org/docs/rules/

Missing space after *.
Open

  co(function *() {
Severity: Minor
Found in src/server/passport/local.js by eslint

Enforce spacing around the * in generator functions (generator-star-spacing)

Generators are a new type of function in ECMAScript 6 that can return multiple values over time. These special functions are indicated by placing an * after the function keyword.

Here is an example of a generator function:

/*eslint-env es6*/

function* generator() {
    yield "44";
    yield "55";
}

This is also valid:

/*eslint-env es6*/

function *generator() {
    yield "44";
    yield "55";
}

This is valid as well:

/*eslint-env es6*/

function * generator() {
    yield "44";
    yield "55";
}

To keep a sense of consistency when using generators this rule enforces a single position for the *.

Rule Details

This rule aims to enforce spacing around the * of generator functions.

Options

The rule takes one option, an object, which has two keys before and after having boolean values true or false.

  • before enforces spacing between the * and the function keyword. If it is true, a space is required, otherwise spaces are disallowed.

In object literal shorthand methods, spacing before the * is not checked, as they lack a function keyword.

  • after enforces spacing between the * and the function name (or the opening parenthesis for anonymous generator functions). If it is true, a space is required, otherwise spaces are disallowed.

The default is {"before": true, "after": false}.

An example configuration:

"generator-star-spacing": ["error", {"before": true, "after": false}]

And the option has shorthand as a string keyword:

  • {"before": true, "after": false} → "before"
  • {"before": false, "after": true} → "after"
  • {"before": true, "after": true} → "both"
  • {"before": false, "after": false} → "neither"

An example of shorthand configuration:

"generator-star-spacing": ["error", "after"]

Examples

before

Examples of correct code for this rule with the "before" option:

/*eslint generator-star-spacing: ["error", {"before": true, "after": false}]*/
/*eslint-env es6*/

function *generator() {}

var anonymous = function *() {};

var shorthand = { *generator() {} };

after

Examples of correct code for this rule with the "after" option:

/*eslint generator-star-spacing: ["error", {"before": false, "after": true}]*/
/*eslint-env es6*/

function* generator() {}

var anonymous = function* () {};

var shorthand = { * generator() {} };

both

Examples of correct code for this rule with the "both" option:

/*eslint generator-star-spacing: ["error", {"before": true, "after": true}]*/
/*eslint-env es6*/

function * generator() {}

var anonymous = function * () {};

var shorthand = { * generator() {} };

neither

Examples of correct code for this rule with the "neither" option:

/*eslint generator-star-spacing: ["error", {"before": false, "after": false}]*/
/*eslint-env es6*/

function*generator() {}

var anonymous = function*() {};

var shorthand = { *generator() {} };

When Not To Use It

If your project will not be using generators or you are not concerned with spacing consistency, you do not need this rule.

Further Reading

Expected empty line after require statement not followed by another require.
Open

const LocalStrategy = require('passport-local').Strategy
Severity: Minor
Found in src/server/passport/local.js by eslint

For more information visit Source: http://eslint.org/docs/rules/

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