unicorn/no-nested-ternary Style

🛠️ An auto-fix is available for this rule for some violations.

Disallow deeply nested ternary expressions.

Nested ternary expressions that are only one level deep and wrapped in parentheses are allowed by this rule.

Nesting ternary expressions can make code more difficult to understand.

Examples of incorrect code for this rule:

javascript

const foo = i > 5 ? (i < 100 ? true : false) : true;
const foo = i > 5 ? true : i < 100 ? true : i < 1000 ? true : false;

Examples of correct code for this rule:

javascript

const foo = i > 5 ? (i < 100 ? true : false) : true;
const foo = i > 5 ? (i < 100 ? true : false) : i < 100 ? true : false;

How to use

To enable this rule using the config file or in the CLI, you can use:

Config (.oxlintrc.json)Config (oxlint.config.ts)CLI

json

{
  "rules": {
    "unicorn/no-nested-ternary": "error"
  }
}

import { defineConfig } from "oxlint";

export default defineConfig({
  rules: {
    "unicorn/no-nested-ternary": "error",
  },
});

bash

oxlint --deny unicorn/no-nested-ternary

This rule was added in v0.0.18.