Registry / testing / prettier-plugin-curly

prettier-plugin-curly

library0.4.1jsnpmunverified

Prettier plugin to enforce consistent brace style for all control statements (for, if, while, etc.), adding curly braces around bodies. Current stable version is 0.4.1, released November 2025. It works alongside Prettier to enforce the equivalent of ESLint's curly 'all' rule, filling a gap where Prettier intentionally avoids modifying code structure. Requires Node >=18 and Prettier ^3. Version 0.4.0 introduced a complete rewrite using wrapped printers.estree. The plugin is actively maintained by JoshuaKGoldberg and the community.

testing

npm install prettier-plugin-curly

github ↗package ↗

INSTALL

IMPORT

SIG · PRETTIER-PLUGIN-CU

prettier-plugin-curly

testingjavascriptv0.4.1

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import prettierPluginCurly from 'prettier-plugin-curly'

✗ const prettierPluginCurly = require('prettier-plugin-curly')

ESM-only since v0.4.0; CommonJS require() will fail

default

✓ module.exports = { plugins: ['prettier-plugin-curly'] }

✗ module.exports = { plugins: ['./node_modules/prettier-plugin-curly'] }

String name is preferred; path-based referencing may break with module resolution

prettierPluginCurly

✓ import prettierPluginCurly from 'prettier-plugin-curly'

✗ const { default: prettierPluginCurly } = require('prettier-plugin-curly')

Named export 'default' is not used; default import is correct

Configures Prettier to use prettier-plugin-curly; shows transformation of single-line if to curly brace style.

// .prettierrc { "plugins": ["prettier-plugin-curly"] } // Before: if (x) doSomething(); // After prettier formatting: // if (x) { // doSomething(); // }

Debug

Known issues

breakingDropped support for Prettier 2 in v0.4.1

fix

Upgrade to Prettier 3 and use prettier-plugin-curly ^0.4.1

affects: <0.4.1

breakingComplete rewrite in v0.4.0: plugin now exports a wrapped printers.estree instead of printers.ast

fix

Ensure no custom printer overrides conflict with new internal architecture

affects: >=0.4.0 <0.4.1

deprecatedCommonJS require() no longer works in v0.4.0+

fix

Use ESM imports or upgrade to v0.4.1 which may have limited CJS support (check release notes)

affects: >=0.4.0

gotchaPlugin modifies Prettier output for all control statements unconditionally; cannot be configured to skip certain statements

fix

If selective behavior is needed, consider ESLint's curly rule instead

affects: all

gotchaPlugin may conflict with other Prettier plugins that modify control statement printing

fix

Ensure plugin order in 'plugins' array places prettier-plugin-curly before any conflicting plugins

affects: all

Errors

Common errors & fixes

Error: Cannot find module 'prettier-plugin-curly'

Package not installed or Node.js cannot resolve it

fix

Run `npm install prettier-plugin-curly --save-dev`

Error: The module 'prettier-plugin-curly' is not a Prettier plugin

Using incorrect import or path configuration

fix

In .prettierrc, use "plugins": ["prettier-plugin-curly"] (string name) not a path

Error [ERR_REQUIRE_ESM]: require() of ES Module

Trying to use require() with ESM-only package (v0.4.0+)

fix

Use import syntax or downgrade to v0.3.x (but note Prettier 3 support may be limited)

TypeError: prettierPluginCurly is not a function

Incorrectly destructuring default export

fix

Use `import prettierPluginCurly from 'prettier-plugin-curly'` (default import) not `{ prettierPluginCurly }`

Upgrade

Version history

0.4.1latest on npm

Audit

Dependencies

prettierrequiredpeer dependency required to use the plugin

Agent activity

6 hits · last 30 days

node

Resources

githubhttps://github.com/JoshuaKGoldberg/prettier-plugin-curly ↗

packagehttps://www.npmjs.com/package/prettier-plugin-curly ↗