prettier 命令

常用示例

说明

prettier is an opinionated code formatter that enforces a consistent style by parsing code and reprinting it with its own rules. It supports JavaScript, TypeScript, CSS, HTML, JSON, Markdown, YAML, GraphQL, and many other languages through plugins. The tool deliberately limits configuration options to minimize style debates in teams. Files can be formatted in place with --write or checked for conformance with --check, making it suitable for both local development and CI pipelines.

参数

--write

Edit files in place.

--check

Check if formatted.

--parser _NAME_

Force parser.

--config _FILE_

Config file path.

--single-quote

Use single quotes.

--tab-width _N_

Spaces per indentation level (default: 2).

--print-width _N_

Line length to wrap at (default: 80).

--trailing-comma _MODE_

Trailing commas: all, es5, or none (default: all).

--no-semi

Do not print semicolons.

--use-tabs

Indent with tabs instead of spaces.

--list-different, -l

Print filenames of files that differ from formatting.

--no-config

Do not look for a configuration file.

--ignore-unknown, -u

Ignore unknown files matched by patterns.

--prose-wrap _MODE_

Wrapping in markdown: always, never, or preserve (default: preserve).