Extra commas after prefer-object-spread --fix

[turadg]

Tell us about your environment

• ESLint Version: 5.0.0
• Node Version: 8.11.3
• npm Version: 6.1.0

What parser (default, Babel-ESLint, etc.) are you using? Babel-Eslint 8.2.5

Please show your full configuration:

Configuration

---
# Use babel as our parser https://github.com/babel/babel-eslint
parser: "babel-eslint"

# by default we follow this styleguide https://github.com/airbnb/javascript
# overrides below in rules
extends:
  - "airbnb"
  - "prettier"
  - "prettier/flowtype"
  - "prettier/react"

plugins:
  # React rules https://github.com/yannickcr/eslint-plugin-react
  - "react"
  # Flowtype rules https://github.com/gajus/eslint-plugin-flowtype
  - "flowtype"
  # Browser compatibility rules https://github.com/amilajack/eslint-plugin-compat
  - "compat"

rules:
  # Stricter than Airbnb
  constructor-super: 2
  prefer-const: 2
  no-class-assign: 2
  no-this-before-super: 2
  quote-props:
    - 2
    - "as-needed"
    -
      unnecessary: false
      numbers: true
  no-eq-null: 2
  new-cap: 0 # TODO alan switch to prefer cap
  arrow-spacing: 2
  block-spacing: 2
  spaced-comment: 2
  prefer-object-spread: 2

…

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

    const actions = Object.assign(
      {
        onChangeInput: this.handleChangeInput,
      },
      this.props.actions
    );

eslint <path> --fix

What did you expect to happen?

    const actions = {
        onChangeInput: this.handleChangeInput,
        ...this.props.actions,
    };

What actually happened? Please include the actual, raw output from ESLint.

    const actions = {
        onChangeInput: this.handleChangeInput,,
...this.props.actions};

Note the extra comma, causes syntax error.

Proper indentation would be nice, but can be fixed with Prettier, if the two commas didn't break the syntax.

[platinumazure]

Hi @turadg, thanks for the issue!

I can recreate in the demo. This is definitely a bug.

[mysticatea]

I'll try to fix it if anyone has not been working on this.