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1# eslint-plugin-babel
2
3An `eslint` plugin companion to `babel-eslint`. `babel-eslint` does a great job at adapting `eslint`
4for use with Babel, but it can't change the built in rules to support experimental features.
5`eslint-plugin-babel` re-implements problematic rules so they do not give false positives or negatives.
6
7> Requires Node 4 or greater
8
9### Install
10
11```sh
12npm install eslint-plugin-babel --save-dev
13```
14
15Load the plugin in your `.eslintrc` file:
16
17```json
18{
19 "plugins": [
20 "babel"
21 ]
22}
23```
24
25Finally enable all the rules you would like to use (remember to disable the
26original ones as well!).
27
28```json
29{
30 "rules": {
31 "babel/new-cap": 1,
32 "babel/object-curly-spacing": 1,
33 "babel/no-await-in-loop": 1,
34 "babel/flow-object-type": 1,
35 "babel/no-invalid-this": 1
36 }
37}
38```
39### Rules
40
41Each rule corresponds to a core `eslint` rule, and has the same options.
42
43🛠 : means it's autofixable with `--fix`.
44
45- `babel/new-cap`: Ignores capitalized decorators (`@Decorator`)
46- `babel/object-curly-spacing`: doesn't complain about `export x from "mod";` or `export * as x from "mod";` (🛠 )
47- `babel/no-invalid-this`: doesn't fail when inside class properties (`class A { a = this.b; }`)
48
49The following rules are not in `eslint`, but are relevant only to syntax that is not specified by
50the current JavaScript standard or supported by `eslint`.
51
52- `babel/no-await-in-loop`: guard against awaiting async functions inside of a loop
53
54#### Deprecated
55
56- `babel/generator-star-spacing`: Use [`generator-star-spacing`](http://eslint.org/docs/rules/generator-star-spacing).
57- `babel/object-shorthand`: Use [`object-shorthand`](http://eslint.org/docs/rules/object-shorthand).
58- `babel/arrow-parens`: Use [`arrow-parens`](http://eslint.org/docs/rules/arrow-parens).
59- `babel/func-params-comma-dangle`: Use [`comma-dangle`](http://eslint.org/docs/rules/comma-dangle).
60- `babel/array-bracket-spacing`: Use [`array-bracket-spacing`](http://eslint.org/docs/rules/array-bracket-spacing).
61- `babel/flow-object-type`: Use [`flowtype/object-type-delimiter`](https://github.com/gajus/eslint-plugin-flowtype#eslint-plugin-flowtype-rules-object-type-delimiter).