It you are using a custom jsx pragma compiler directive, such as from emotion
or theme-ui
, other import-sort
styles won't handle moving the compiler directive and pragma import together to the top of the file. You'll end up
with an unused-import
error from eslint-plugin-unused-imports
if you are using that ESLint rule which is included
in a number of ESLint presets. This forces you to also include an eslint-disable-next-line
directive before the
jsx import, or to turn off an otherwise-helpful rule if you are using custom jsx
pragmas on a per-page basis.
Correct:
/** @jsx jsx */
import { jsx } from 'theme-ui'
// ... other imports
This is a style for import-sort that ensures custom jsx
pragmas and their
associated imports are always sorted at the top of a module, and then groups modules together. It also handles
scoped modules e.g. @myScope
using TypeScript paths
in tsconfig
or a similar approach.
NPM:
npm i --save-dev import-sort-style-jsxpragma sort-importer
Yarn:
yarn add import-sort-style-jsxpragma sort-importer -D
Add the following to your package.json
file. You can also change your parser.
"importSort": {
".js, .jsx, .es6, .es, .mjs, .ts, .tsx": {
"style": "jsxpragma"
}
}
Any import
of a jsx
pragma will placed at the top of the code file. The compiler directive
(/** @jsx jsx */
) should be on the line directly above the jsx
pragma import
.
//
//----------------------------------------------------------------------------
/** @jsx jsx */
import { jsx } from 'theme-ui'
// Absolute modules with side effects, not sorted because order may matter)
import 'a'
import 'c'
import 'b'
// Relative modules with side effects, not sorted because order may matter
import './a'
import './c'
import './b'
// Modules from the Node.js "standard" library sorted by name
import { readFile, writeFile } from 'fs'
import * as path from 'path'
// Third-party modules sorted by name
import aa from 'aa'
import bb from 'bb'
// Scoped modules
import aa from '@myScope/aa'
import bb from '@myScope/bb'
import cc from '@yourScope/cc'
// First-party modules sorted by "relative depth" and then by name
import aaa from '../../aaa'
import bbb from '../../bbb'
import aaaa from '../aaaa'
There are multiple ways to sort your imports:
- Visual Studio Code
- Atom
- Vim
- JetBrains IDEs (IntelliJ IDEA, WebStorm etc.) docs
- Command Line
To sort from the command line, install sort-importer
with npm install -g import-sort-cli
or use it directly with npx import-sort-cli
.
Comments are moved with their associated import if there are no blank lines between the two, and also if they are inline.
import foo from 'bar' // This comment will move with the import
// This comment will also move with the import
import foo from 'bar'
// This comment won't move with the import
// This comment will move with the import
import foo from 'bar'
// This comment won't move with the import
For copyright headers and compiler pragmas like @flow
that are not in a comment block, a blank line should
be added after the comment with the exception of jsx
compiler directives (to avoid ESLint unused-import
errors if you are using that rule).
// @flow
import foo from 'bar'
Tests use Jest snapshots to test sorting matchers:
npm run test
Snapshots can be updated if code changes as follows. They will not automatically be updated in CI but are committed to the repo.
npm run test --updateSnapshot