Xiaohu eslint rule standard

Wired space before function parentheses

All the goodness of Flet/semistandard with space removed before function parentheses.

Install

npm install xhstandard

Rules

Importantly:

• "space-before-function-paren": ["error", { "anonymous": "never", "named": "never", "asyncArrow": "always"}]
• Check Flet/semistandard for the rest of the rules.

semistandard Change Log

All notable changes to this project will be documented in this file. This project adheres to Semantic Versioning.

11.0.0 2017-04-20

Updated to match the latest standard v10.0.2 rules and the newest standard-engine features.

Check standard changelog that covers all the updates: https://github.com/feross/standard/blob/master/CHANGELOG.md

In summary:

• using deprecated Node.js APIs is now considered an error. It's finally time to update those dusty old APIs!

New features

• Update ESLint from 3.15.x to 3.19.x.
• Node.js API: Add standard.lintTextSync method

New rules

(Estimated % of affected standard users, based on test suite in parens)

• Disallow using deprecated Node.js APIs (node/no-deprecated-api) #693 (13%)
  • Ensures that code always runs without warnings on the latest versions of Node.js
  • Ensures that safe Buffer methods (Buffer.from(), Buffer.alloc()) are used instead of Buffer()
• Enforce callbacks always called with Node.js-style error first (standard/no-callback-literal) #623 (3%)
  • Functions named callback or cb must be invoked with null, undefined, or an Error as the first argument
  • Disallows using a string instead of an Error object
  • Disallows confusing callbacks that do not follow the standard Node.js pattern
• Disallow any imports that come after non-import statements (import/first) #806 (1%)
• Disallow unnecessary return await (no-return-await) #695 (0%)
• Disallow comma-dangle in functions (comma-dangle) #787 (0%)
• Disallow repeated exports of names or defaults (import/export) #806 (0%)
• Disallow import of modules using absolute paths (import/no-absolute-path) #806 (0%)
• Disallow Webpack loader syntax in imports (import/no-webpack-loader-syntax) #806 (0%)
• Disallow comparing against -0 (no-compare-neg-zero) #812 (0%)

Changed rules

• Relax rule: allow using ...rest to omit properties from an object (no-unused-vars) #800
  • This is a common and useful pattern in React/JSX apps!
• Relax rule: allow Flow import type statements (import/no-duplicates) #599
  • These are no longer considered to be "duplicate imports"
• Relax rule: Treat process.exit() the same as throw in code path analysis (node/process-exit-as-throw) #699
  • Makes certain other rules work better and give fewer false positives
• Relax rule: allow Unnecessary Labels (no-extra-label)
  • Redundant, since "no-labels" is already enabled, which is more restrictive

(from standard 10.0.2):

• Relax rule: Disallow import of modules using absolute paths (import/no-absolute-path) #861
  • This rule was responsible for up to 25% of the running time of standard, so we are disabling it until its performance improves.

10.0.0 2017-03-06

Updated to match the latest standard rules and the newest standard-engine features.

@feross did a great writeup on the standard changelog that covers all the updates: https://github.com/feross/standard/blob/master/CHANGELOG.md

In summary:

New features

• Update ESLint from 3.10.x to 3.15.x
• 3 additional rules are now fixable with standard --fix

New rules

(Estimated % of affected standard users, based on test suite in parens)

• Disallow mixing different operators without parens (no-mixed-operators) #566 (5%)
• Enforce 1 newline at end of file (previously 1 or 2 were ok) (no-multiple-empty-lines) #733 (3%)
• Disallow Unused Expressions (no-unused-expressions) #690 (3%)
  • Note: this affects users of the Chai test framework. Read about the changes you need to make.
• Disallow redundant return statements (no-useless-return) #694 (1%)
• Disallow Incorrect Early Use (no-use-before-define) #636 (0%)
• Enforce that Promise rejections are passed an Error object as a reason (prefer-promise-reject-errors) #777 (0%)
• Enforce comparing typeof expressions against string literals (valid-typeof) #629 (0%)
• Enforce spacing around * in generator functions (generator-star-spacing) #724 (0%)
• Disallow Unnecessary Labels (no-extra-label) #736 (0%)
• Disallow spacing between template tags and their literals (template-tag-spacing) #755 (0%)
• Disallow padding within switch statements and classes (padded-blocks) #610 (0%)
• Enforce that Symbols are passed a description (symbol-description) #630 (0%)

Changed rules

• Relax rule: allow TypeScript Triple-Slash Directives (spaced-comment) #660
• Relax rule: allow Flow Comments (spaced-comment) #661

9.0.0 2016-09-03

Updated to match the latest standard rules and the newest standard-engine features.

@feross did a great writeup on the standard changelog that covers all the updates: https://github.com/feross/standard/blob/master/CHANGELOG.md

In summary:

New features

• Upgrade to ESLint v3 (http://eslint.org/docs/user-guide/migrating-to-3.0.0)
  • BREAKING: Drop support for node < 4 (this was a decision made by the ESLint team)
• Expose ESLint's --fix command line flag standard-engine/#107
  • Lightweight, no additional dependencies, fixes dozens of rules automatically
  • Note: for semistandard, we left the existing --format flag in place, which uses semistandard-format, but I highly recommend using --fix instead!

New rules

(Estimated % of affected standard users, based on test suite in parens)

• Enforce placing object properties on separate lines (object-property-newline) #524 (2%)
• Require block comments to be balanced (spaced-comment "balanced") #572 (2%)
• Disallow constant expressions in conditions (no-constant-condition) #563 (1%)
• Disallow renaming import, export, and destructured assignments to the same name (no-useless-rename) #537 (0%)
• Disallow spacing between rest and spread operators and their expressions (rest-spread-spacing) #567 (0%)
• Disallow the Unicode Byte Order Mark (BOM) (unicode-bom) #538 (0%)
• Disallow assignment to native objects/global variables (no-global-assign) #596 (0%)
• Disallow negating the left operand of relational operators (no-unsafe-negation) #595 (0%)
• Disallow template literal placeholder syntax in regular strings (no-template-curly-in-string) #594 (0%)
• Disallow tabs in file (no-tabs) #593 (0%)

Changed rules

• Relax rule: Allow template literal strings (backtick strings) to avoid escaping
 #421
• Relax rule: Do not enforce spacing around * in generator functions (https://github.com/feross/standard/issues/564#issuecomment-234699126)
  • This is a temporary workaround for babel users who use async generator functions.

8.0.0 2016-05-12

Updated to match the latest standard rules and use the latest version of semistandard-format.

New Rules

• Require camelCase (camelcase)
• Disallow unnecessary escape usage (no-useless-escape)
• Disallow duplicate imports (no-duplicate-imports)
• Disallow unmodified conditions of loops (no-unmodified-loop-condition)
• Disallow whitespace before properties (no-whitespace-before-property)
• Disallow control flow statements in finally blocks (no-unsafe-finally)
• Disallow unnecessary computed property keys on objects (no-useless-computed-key)
• Validate spacing before closing bracket in JSX (react/jsx-space-before-closing)

6.1.1 2016-06-17

• Bump standard-engine to 1.8.1, which fixes an NPE. (thanks again @wombleton)

6.1.0 2015-06-16

• Fix react rules to work again.
• New Rules coming from eslint-config-standard:
• accessor-pairs - warns if setters are defined without getters.
• "one-var": [2, { "initialized": "never" }] - Split initialized 'var' declarations into multiple statements.

6.0.0 2015-06-03

BREAKING CHANGE: New Rules

• no-extra-semi - This rule is aimed at eliminating extra unnecessary semicolons. While not technically an error, extra semicolons can be a source of confusion when reading code.

• semi-spacing - Disallow a space before semicolons and force a space after them.

5.0.0 2015-05-29

• Updated to standard rules 2.0.0 BREAKING CHANGE: new rule operator-linebreak set to "after"

4.3.0 2015-05-29

• Updated to standard-engine 1.6.0
• alternate parsers are now supported. See README.md for details!

4.2.2 2015-05-25

• Since standard-engine now supports passing a formatter, we've switched back to using it for the CLI.

4.2.1 2015-05-25

• Bumped all dependencies to their latest minor versions in package.json
• This includes a fix in standard-engine which dramatically speeds up lint times!

4.2.0 2015-05-20

• Switch to using eslint-config-semistandard, which extends eslint-config-standard. This means that non-breaking changes in standard should automatically get reflected now!

• Thanks to new collaborator @ricardofbarros, semistandard now has a --format (-F) flag! It uses his semistandard-format module which is a fork of standard-format. Good Stuff!

4.1.4 2015-05-02

• Merged from standard: relax rule no-alert

4.1.3 - 2015-04-23

• Merged from standard rules: relax no-lone-blocks rule for ES6 reasons

4.1.2 - 2015-04-16

• Fixed programmatic usage so it actually works.

4.1.1 - 2015-04-15

• Update standard-engine version to fix crash on absolute filesystem path

4.1.0 - 2015-04-14

Merged latest from standard 3.6.0:

• Rule turned off: no-script-url
• All warning rules changed to error
• Changed space-before-function-parentheses to space-before-function-paren
• new react rules added
  • "react/jsx-boolean-value": 2
  • "react/jsx-quotes": [2, "single", "avoid-escape"]
  • "react/jsx-no-undef": 2
  • "react/jsx-sort-props": 0
  • "react/no-unknown-property": 2

Updates from standard-engine

• Ignore linting for all files in .gitignore.
• Removed /git/** exclusion as its redundant.
• Output errors to stdout instead of stderr.