#no-unreadable-iife

#Configuration

import { defineConfig, unicornPlugin } from '@rslint/core';

export default defineConfig([
  unicornPlugin.configs.recommended,
  {
    rules: {
      'unicorn/no-unreadable-iife': 'error',
    },
  },
]);

#Rule Details

Disallow immediately invoked arrow functions with parenthesized expression bodies. A block body makes the function body easier to distinguish from the surrounding call.

Examples of incorrect code for this rule:

const foo = (bar => (bar ? bar.baz : baz))(getBar());
const value = (() => ({ ready: true }))();

Examples of correct code for this rule:

const foo = (bar => {
  return bar ? bar.baz : baz;
})(getBar());
const value = { ready: true };

#Suggestions

This rule offers an editor suggestion to replace the parenthesized body with a block containing a return statement. It does not automatically fix code. The suggestion is withheld when removing the parentheses would discard comments outside the expression. Comments inside the expression are preserved.

#Options

This rule has no options.

#Original Documentation

• eslint-plugin-unicorn: no-unreadable-iife
• Source code