Upgrade to eslint v2 #730

hshoff · 2016-02-12T20:02:04Z

To the future we go. Couple more steps to go before publish:

bump eslint
review additional rules + features in v2
add new rules set to 0
add new rules we want to enforce + add explanations to Readme
bump eslint-plugin-react Roadmap v4.0.0 jsx-eslint/eslint-plugin-react#436
update changelog
publish to npm

ljharb · 2016-02-13T21:26:07Z

packages/eslint-config-airbnb/rules/best-practices.js

@@ -32,7 +32,7 @@ module.exports = {
    // disallow else after a return in an if
    'no-else-return': 2,
    // disallow use of labels for anything other then loops and switches
-    'no-empty-label': 2,
+    'no-labels': [2, { 'allowLoop': true, 'allowSwitch': true }],


we should definitely set both of these to false - we don't allow GOTO in any form, including breaking to a label.

hshoff · 2016-02-13T21:51:34Z

ljharb · 2016-02-13T21:53:07Z

@hshoff at the least, we should include all the new rules with all their options, but set to 0, so we don't miss them later.

ljharb · 2016-02-13T21:55:15Z

no-useless-constructor we should absolutely enable, we were going to make an internal plugin for that anyways. (also template-curly-spacing)

ljharb · 2016-02-14T06:52:12Z

README.md

+    // good
+    class Rey extends Jedi {
+      constructor(...args) {
+        super(...args);


this is also "bad" - a constructor that does nothing but passes the args untouched to super is also a violation of the linter rule.

- `id-blacklist` - `no-extra-label` - `no-implicit-globals` - `no-restricted-imports` - `no-unmodified-loop-condition` - `no-unused-labels` - `sort-imports` - `yield-star-spacing`

ljharb · 2016-02-14T19:52:33Z

packages/eslint-config-airbnb/rules/best-practices.js

-    'no-empty-label': 2,
+    // disallow Unnecessary Labels
+    // http://eslint.org/docs/rules/no-extra-label
+    'no-extra-label': 0,


since we already prevent labels in no-labels, i think this can be set to 2 without any additional justification in the guide (assuming it already says "no labels ever" somewhere)

hshoff · 2016-02-20T21:33:34Z

@ljharb @lencioni @kesne ready for review

@ljharb can you handle the publishing when we're ready?

ljharb · 2016-02-20T22:07:52Z

On it - I'm doing some rebasing (also making sure both devDeps and peerDeps are updated in lockstep), I'll force push it up shortly and will publish soon after.

lencioni · 2016-02-21T02:05:17Z

README.md

+      }
+
+      return false;
+    });


While I agree with this example, it doesn't seem to pertain to the text of the rule here.

Also, this example could be simplified to:

[1, 2, 3].filter((x) => { return x > 2; });

or even:

[1, 2, 3].filter(x => x > 2);

so I'm not sure it is the best to use here.

Second one is better in my opinion

…origin/harry-eslint-v2' Closes #730.

ljharb · 2016-02-21T08:52:33Z

v6.0.0 published.

mxstbr · 2016-02-21T08:54:59Z

👍 Awesome!

kesne · 2016-02-21T12:19:20Z

README.md

+    // good
+    class Rey extends Jedi {
+      constructor(...args) {
+        super(args);


Should the args object be spread into the super constructor? I.e. super(...args).

It depends on what your parent takes :)

Right, but in this case that would make this class pretty weird. I mean it's a made up example, so it doesn't really matter.

Fixed in 8a6f009

Per #730 (comment)

Per airbnb#730 (comment)

Per airbnb/javascript#730 (comment)

hshoff added 8 commits February 12, 2016 11:09

[Deps] update eslint to v2, eslint-plugin-react to v4

1bb72ab

[eslint-v2] no-empty-label => no-labels

d49a1ed

[eslint-v2] space-after/before/return/throw/case => keyword-spacing

1efb11c

[eslint-v2] fix no-labels rule

da4213c

[eslint-v2] set es6 env to true

dff5099

[eslint-v2] ecmaFeatures => parserOptions

4f32315

[eslint-v2] fix keyword-spacing style and sorting

3aa8c58

[eslint-v2] no gens, no dup props in obj literal

75807b9

This was referenced Feb 12, 2016

Migrate to [email protected] #711

Closed

ESlint config errors with eslint v2 #728

Closed

ESLint Rules not compatible with ESLint 2.0.0 #731

Closed

This was referenced Feb 12, 2016

no-empty-label was renamed to no-labels in ESLint v2 #729

Closed

Update to eslint 2.0 #732

Closed

kesne mentioned this pull request Feb 13, 2016

ESLint 2.0.0 Released -- New Rules to Consider #733

Closed

lencioni mentioned this pull request Feb 13, 2016

So many errors for a single console statement #734

Closed

ljharb reviewed Feb 13, 2016
View reviewed changes

[eslint-v2] fix no-labels rule

5109c84

[eslint-v2][constructors] disallow unnecessary constructors

1cbc628

connor4312 mentioned this pull request Feb 14, 2016

Update eslint to version 2.0.0 🚀 microsoft/jojen#2

Closed

ljharb reviewed Feb 14, 2016
View reviewed changes

hshoff added 2 commits February 14, 2016 02:34

[eslint-v2][constructors] fix bad + good examples

91b8365

[eslint-v2] add new rules, disabled:

c05b2da

- `id-blacklist` - `no-extra-label` - `no-implicit-globals` - `no-restricted-imports` - `no-unmodified-loop-condition` - `no-unused-labels` - `sort-imports` - `yield-star-spacing`

hshoff mentioned this pull request Feb 14, 2016

Update to eslint to 2.x #735

Closed

larshp mentioned this pull request Feb 14, 2016

update eslint to 2.0.0 abaplint/linter-abaplint#3

Closed

ljharb mentioned this pull request Feb 14, 2016

[email protected] #736

Closed

[eslint-v2][whitespace] add newline-per-chained-call rule

172dffb

ljharb reviewed Feb 14, 2016
View reviewed changes

hshoff force-pushed the harry-eslint-v2 branch from 3513243 to 80e30a1 Compare February 20, 2016 21:31

ljharb force-pushed the harry-eslint-v2 branch 2 times, most recently from ee15797 to 244bb13 Compare February 20, 2016 22:14

lencioni reviewed Feb 21, 2016
View reviewed changes

ljharb mentioned this pull request Feb 21, 2016

Unable install eslint-config-airbnb due to semver. #745

Closed

hshoff added 3 commits February 20, 2016 23:33

[eslint-v2][arrays] update array-callback-return good/bad ex

b79e951

[eslint-v2][arrays] fix example

3983d38

[changelog] update changelog for 6.0.0

0f32b96

ljharb force-pushed the harry-eslint-v2 branch 2 times, most recently from 97155ea to 0f32b96 Compare February 21, 2016 08:50

ljharb merged commit 0f32b96 into master Feb 21, 2016

ljharb added a commit that referenced this pull request Feb 21, 2016

[eslint config] Update to eslint v2: Merge remote-tracking branch '…

07e3cde

…origin/harry-eslint-v2' Closes #730.

ljharb deleted the harry-eslint-v2 branch February 21, 2016 08:51

kesne reviewed Feb 21, 2016
View reviewed changes

ljharb added a commit that referenced this pull request Feb 21, 2016

Fix no-useless-constructor example.

8a6f009

Per #730 (comment)

ljharb added enhancement semver-breaking: guide change labels Feb 21, 2016

geekjuice mentioned this pull request Feb 22, 2016

Update with airbnb/[email protected] HubSpot/javascript#19

Merged

gilbox pushed a commit to gilbox/javascript that referenced this pull request Mar 21, 2016

Fix no-useless-constructor example.

29956f0

Per airbnb#730 (comment)

jaylaw81 pushed a commit to appirio-digital/ads-best-practices that referenced this pull request Sep 19, 2017

Fix no-useless-constructor example.

158fbad

Per airbnb#730 (comment)

sensiblegame added a commit to sensiblegame/React-BNB that referenced this pull request Oct 23, 2017

Fix no-useless-constructor example.

5034204

Per airbnb/javascript#730 (comment)

ljharb mentioned this pull request Mar 17, 2021

Is this example appropriate? (19.6) #2403

Closed

passionSeven added a commit to passionSeven/javascript that referenced this pull request Jan 27, 2023

Fix no-useless-constructor example.

b22edd7

Per airbnb/javascript#730 (comment)

Binary-Ninja-007 added a commit to Binary-Ninja-007/JavaScript_Style_Guide that referenced this pull request Aug 13, 2023

Fix no-useless-constructor example.

01e2ec9

Per airbnb/javascript#730 (comment)

harry908nilson pushed a commit to marcolane/Javascriipt that referenced this pull request Sep 1, 2023

Fix no-useless-constructor example.

80a3b6f

Per airbnb/javascript#730 (comment)

talentdev219 added a commit to talentdev219/javascript that referenced this pull request Sep 17, 2023

Fix no-useless-constructor example.

6fb32f5

Per airbnb/javascript#730 (comment)

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Upgrade to eslint v2 #730

Upgrade to eslint v2 #730

hshoff commented Feb 12, 2016

ljharb Feb 13, 2016

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ljharb Feb 14, 2016

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lencioni Feb 21, 2016

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ljharb commented Feb 21, 2016

mxstbr commented Feb 21, 2016

kesne Feb 21, 2016

tleunen Feb 21, 2016

kesne Feb 21, 2016

ljharb Feb 21, 2016

Upgrade to eslint v2 #730

Upgrade to eslint v2 #730

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hshoff commented Feb 12, 2016

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hshoff commented Feb 13, 2016

Proposal:

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