ESLint v3.13.0 released

We just pushed ESLint v3.13.0, which is a minor release upgrade of ESLint. This release adds a new feature and fixes several bugs found in the previous release.

Highlights

This is a summary of some of the notable changes in this version of ESLint.

New Rules

One new rule was added:

• prefer-destructuring

Autofixing

Autofix support was added to the following rules:

• no-extra-label
• no-unneeded-ternary
• object-property-newline
• operator-linebreak

Features

• 27424cb New: prefer-destructuring rule (fixes #6053) (#7741) (Alex LaFroscia)

Enhancements

• cd4c025 Update: add fixer for no-extra-label (#7840) (Teddy Katz)
• c9ba40a Update: add fixer for no-unneeded-ternary (#7540) (Teddy Katz)
• dd56d87 Update: add object-shorthand option for arrow functions (fixes #7564) (#7746) (Teddy Katz)
• d80d994 Update: add fixer for object-property-newline (fixes #7740) (#7808) (Teddy Katz)
• 1beecec Update: add fixer for operator-linebreak (#7702) (Teddy Katz)
• ebcae1f Update: no-return-await with with complex return argument (fixes #7594) (#7595) (Dalton Santos)
• 7d1dc7e Update: Make default-case comment case-insensitive (fixes #7673) (#7742) (Robert Rossmann)

Bug Fixes

• aa75c92 Fix: Ensure prefer-const fixes destructuring assignments (fixes #7852) (#7859) (Teddy Katz)
• ca1f841 Fix: no-useless-return stack overflow on loops after throw (fixes #7855) (#7856) (Teddy Katz)
• bf3ea3a Fix: capitalized-comments: Ignore consec. comments if first is invalid (#7835) (Kevin Partington)
• 0fc24f7 Fix: adapt new-paren rule so it handles TypeScript (fixes #7817) (#7820) (Philipp A)
• df0b06b Fix: no-multiple-empty-lines perf issue on large files (fixes #7803) (#7843) (Teddy Katz)
• 2322733 Fix: Throw error if ruletester is missing required test scenarios (#7388) (Teddy Katz)
• c5c3b21 Fix: no-implied-eval false positive on 'setTimeoutFoo' (fixes #7821) (#7836) (Teddy Katz)
• fd4cd3b Fix: Disable no-var autofixer in some incorrect cases in loops (#7811) (Alan Pierce)
• f20b9e9 Fix: Relax no-useless-escape's handling of ']' in regexes (fixes #7789) (#7793) (Teddy Katz)
• 3004c1e Fix: consistent-return shouldn't report class constructors (fixes #7790) (#7797) (Teddy Katz)
• 428fbdf Fix: func-call-spacing "never" doesn't fix w/ line breaks (fixes #7787) (#7788) (Kevin Partington)
• 6e61070 Fix: semi false positive before regex/template literals (fixes #7782) (#7783) (Teddy Katz)
• ff0c050 Fix: remove internal property from config generation (fixes #7758) (#7761) (alberto)
• 8c3a962 Fix: syntax errors from object-shorthand autofix (fixes #7744) (#7745) (Teddy Katz)

Documentation

• fbafdc0 Docs: padded-blocks never case (fixes #7868) (#7878) (alberto)
• bf45893 Docs: Clarify that we only support Stage 4 proposals (#7845) (Kevin Partington)
• 7122205 Docs: Array destructuring example for no-unused-vars (fixes #7838) (#7839) (Remco Haszing)
• 1f25834 Docs: update outdated info in Architecture page (#7816) (Teddy Katz)
• b938f1f Docs: Add an example for the spread operator to prefer-spread.md (#7802) (#7804) (butlermd)
• b8ce2dc Docs: Remove .html extensions from links in developer-guide (#7805) (Kevin Partington)
• aafebb2 Docs: Wrap placeholder sample in raw (#7798) (Daniel Lo Nigro)
• bb648ce Docs: fix unclear example for no-useless-escape (#7781) (Teddy Katz)
• 8b296a2 Docs: fix in semi.md: correct instead of incorrect (#7779) (German Prostakov)

Dependency Upgrades

• 3493241 Upgrade: strip-json-comments ~v2.0.1 (Janus Troelsen)

Chores

• 4008022 Chore: Refactor to use ES6 Classes (Part 3)(refs #7849) (#7865) (Gyandeep Singh)
• 616611a Chore: Refactor to use ES6 Classes (Part 2)(refs #7849) (#7847) (Gyandeep Singh)
• 856084b Chore: Refactor to use ES6 Classes (Part 1)(refs #7849) (#7846) (Gyandeep Singh)
• 18fa521 Chore: use ast-utils helper functions in no-multiple-empty-lines (#7842) (Teddy Katz)
• e21b36b Chore: add integration tests for cache files (refs #7748) (#7794) (Teddy Katz)
• 00dd96c Chore: enable array-bracket-spacing on ESLint codebase (#7830) (Teddy Katz)
• bb6b73b Chore: replace unnecessary function callbacks with arrow functions (#7795) (Teddy Katz)
• 75b7ba4 Chore: enable object-curly-spacing on ESLint codebase (refs #7725) (#7770) (Teddy Katz)
• f1bf5ec Chore: convert remaining old-style context.report() calls to the new API (#7763) (Teddy Katz)