eslint-plugin-indent-in-parens

Enforce indent alignment after opening parenthesis in control statements.

This plugin is created with Google Antigravity (Geminit 3 Pro (High)).

Installation

You'll first need to install ESLint:

npm i eslint --save-dev

Next, install eslint-plugin-indent-in-parens:

npm install eslint-plugin-indent-in-parens --save-dev

Usage

Add indent-in-parens to the plugins section of your .eslintrc configuration file. You can omit the eslint-plugin- prefix:

{
    "plugins": [
        "indent-in-parens"
    ]
}

Then configure the rules you want to use under the rules section.

{
    "rules": {
        "indent-in-parens/indent-in-parens": ["error", 2]
    }
}

The first option is the indentation size (default: 4). This is used to calculate the correct indentation for ternary operators inside parentheses.

Rules

indent-in-parens

Enforces that content follows the alignment of the opening parenthesis in control statements (if, while, for, switch) and return statements, if the content starts on the same line as the opening parenthesis.

Incorrect:

if (condition &&
  otherCondition) {
}

Correct:

if (condition &&
    otherCondition) {
}

It relaxes standard indentation rules for:

• Content inside block scopes { ... } (uses standard indent).
• Content inside array literals [ ... ] (uses standard indent).
• Opening parentheses immediately followed by a newline (uses standard indent).
• Ternary operators or other expressions where indentation is deeper than the alignment column.