prettier-ts

library1.17.1-2jsnpmunverified

Prettier is an opinionated code formatter that supports JavaScript, TypeScript, CSS, HTML, GraphQL, Markdown, YAML, and many other languages via plugins. The current stable version is 3.8.3 (as of early 2025). It enforces a consistent style by parsing code and re-printing it with its own rules, taking maximum line length into account. Key differentiators: it eliminates debates over code style by being opinionated, integrates with editors and CI via pre-commit hooks, and supports a wide ecosystem of plugins. Released under MIT license, available as an npm package with weekly downloads exceeding 50 million.

testing

npm install prettier-ts

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · PRETTIER-TS

prettier-ts

testingjavascriptv1.17.1-2

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.

prettier

✓ import * as prettier from 'prettier'

✗ const prettier = require('prettier')

Prettier v3 is ESM-only. When using CommonJS, use dynamic import: const prettier = await import('prettier'). For older versions (v2), require() works.

format

✓ import { format } from 'prettier'

✗ const format = require('prettier').format

Named export for formatting a string. In CommonJS, use destructuring from dynamic import.

resolveConfig

✓ import { resolveConfig } from 'prettier'

Resolves configuration from a file path. Returns a config object or null.

check

✓ import { check } from 'prettier'

✗ import { check } from 'prettier/check'

check is a named export from 'prettier' since v3, not a separate module.

Demonstrates async formatting with config resolution. Parses source as JavaScript and applies Prettier rules.

import { format, resolveConfig } from 'prettier'; async function formatCode(code, filepath) { const options = await resolveConfig(filepath); const formatted = await format(code, { ...options, parser: 'babel', filepath }); console.log(formatted); } formatCode('const x = { foo: "bar" }', 'example.js');

prettier --version

Debug

Known issues

breakingPrettier v3 drops Node.js 12 support, requires Node >= 14.17.0.

fix

Upgrade Node.js to version 14.17.0 or higher.

affects: >=3.0.0

breakingPrettier v3 removes the 'typescript' parser alias; use 'babel-ts' or 'typescript' explicitly.

fix

Change parser option from 'typescript' to 'babel-ts' or 'typescript' (still valid but no longer an alias).

affects: >=3.0.0

deprecatedUse of `prettier.standalone` standalone build is deprecated; use `prettier/standalone` module instead.

fix

Replace import 'prettier/standalone' with 'prettier/standalone' (note: no change in path, but the old global isn't available).

affects: >=3.0.0

gotchaPrettier v3 runs asynchronously; use `await format()` not `format()` synchronously.

fix

Ensure all calls to prettier.format are awaited.

affects: >=3.0.0

Errors

Common errors & fixes

Cannot find module 'prettier/standalone'

The standalone module path has changed; or the package is not installed.

fix

Install prettier: npm install prettier. Use import 'prettier/standalone' if using the standalone build.

TypeError: format is not a function

prettier.format is not a function when using older CommonJS require without destructuring or dynamic import.

fix

Use dynamic import: import('prettier').then(p => p.format(...)) or switch to ESM.

Resolution failed. No such file or directory: .prettierrc

resolveConfig is called without a filepath or the config file does not exist.

fix

Provide a valid file path to resolveConfig from the project root.

Prettier 2.x vs 3.x: unknown option '--no-semi'

In Prettier v3, CLI flags changed; --no-semi is replaced by --semi false.

fix

Use --semi false instead of --no-semi.

Upgrade

Version history

1.17.1-2latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

5 hits · last 30 days

node

Amazon

Resources

githubhttps://github.com/prettier/prettier ↗

packagehttps://www.npmjs.com/package/prettier-ts ↗

homepagehttps://prettier.io ↗