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Rslint

    no-confusing-void-expression

    Configuration

    rslint.config.ts
    import { defineConfig, ts } from '@rslint/core';

export default defineConfig([
  ts.configs.recommended,
  {
    rules: {
      '@typescript-eslint/no-confusing-void-expression': 'error',
    },
  },
]);

    Rule Details

    Disallows void type expressions from being used in misleading locations such as being assigned to a variable, returned from a function, or used inside other expressions. The void type in TypeScript indicates a function returns nothing, and using void-returning expressions in value positions can lead to confusing code.

    Examples of incorrect code for this rule:

    // Assigning a void expression to a variable
const result = console.log('hello');

// Returning a void expression from a function
function foo() {
  return console.log('hello');
}

// Using a void expression in an arrow function shorthand
const fn = () => console.log('hello');

    Examples of correct code for this rule:

    // Void expression as a standalone statement
console.log('hello');

// Arrow function with braces
const fn = () => {
  console.log('hello');
};

// Explicit void operator (with ignoreVoidOperator option)
const fn = () => void console.log('hello');

    Original Documentation