From e6b1d74b8dd17698c5a7a000bfe6b20e02820907 Mon Sep 17 00:00:00 2001 From: Myles Borins Date: Wed, 21 Oct 2020 10:59:11 -0400 Subject: [PATCH] doc: update package.json field definitions Only imports has the experimental status right now but technically all ESM related features are currently experimental. The list also doesn't appear to be in any specific order so I've grouped the experimental features together. PR-URL: https://github.com/nodejs/node/pull/35741 Reviewed-By: Guy Bedford Reviewed-By: Derek Lewis Reviewed-By: Daijiro Wachi Reviewed-By: Ujjwal Sharma --- doc/api/packages.md | 56 ++++++++++++++++++++++++--------------------- 1 file changed, 30 insertions(+), 26 deletions(-) diff --git a/doc/api/packages.md b/doc/api/packages.md index 18bafb1c36685b..f1833783f121f6 100644 --- a/doc/api/packages.md +++ b/doc/api/packages.md @@ -834,12 +834,12 @@ The following fields in `package.json` files are used in Node.js: * [`"name"`][] - Relevant when using named imports within a package. Also used by package managers as the name of the package. +* [`"main"`][] - The default module when loading the package, if exports is not + specified, and in versions of Node.js prior to the introduction of exports. * [`"type"`][] - The package type determining whether to load `.js` files as CommonJS or ES modules. * [`"exports"`][] - Package exports and conditional exports. When present, limits which submodules can be loaded from within the package. -* [`"main"`][] - The default module when loading the package, if exports is not - specified, and in versions of Node.js prior to the introduction of exports. * [`"imports"`][] - Package imports, for use by modules within the package itself. @@ -871,6 +871,30 @@ _npm_ registry requires a name that satisfies The `"name"` field can be used in addition to the [`"exports"`][] field to [self-reference][] a package using its name. +### `"main"` + + +* Type: {string} + +```json +{ + "main": "./main.js" +} +``` + +The `"main"` field defines the script that is used when the [package directory +is loaded via `require()`](modules.md#modules_folders_as_modules). Its value +is a path. + +```js +require('./path/to/directory'); // This resolves to ./path/to/directory/main.js. +``` + +When a package has an [`"exports"`][] field, this will take precedence over the +`"main"` field when importing the package by name. + ### `"type"` +> Stability: 1 - Experimental + * Type: {string} The `"type"` field defines the module format that Node.js uses for all @@ -948,6 +974,8 @@ changes: description: Implement conditional exports. --> +> Stability: 1 - Experimental + * Type: {Object} | {string} | {string[]} ```json @@ -969,30 +997,6 @@ referenced via `require` or via `import`. All paths defined in the `"exports"` must be relative file URLs starting with `./`. -### `"main"` - - -* Type: {string} - -```json -{ - "main": "./main.js" -} -``` - -The `"main"` field defines the script that is used when the [package directory -is loaded via `require()`](modules.md#modules_folders_as_modules). Its value -is interpreted as a path. - -```js -require('./path/to/directory'); // This resolves to ./path/to/directory/main.js. -``` - -When a package has an [`"exports"`][] field, this will take precedence over the -`"main"` field when importing the package by name. - ### `"imports"`