Run prettier on all files in repo

.babelrc.js

@@ -9,14 +9,10 @@ module.exports = {
   ],
   env: {
     cjs: {
-      presets: [
-        ['@babel/preset-env', { modules: 'commonjs' }],
-      ],
+      presets: [['@babel/preset-env', { modules: 'commonjs' }]],
     },
     mjs: {
-      presets: [
-        ['@babel/preset-env', { modules: false }],
-      ],
+      presets: [['@babel/preset-env', { modules: false }]],
     },
   },
 };

.eslintrc.yml

@@ -6,12 +6,8 @@ env:
   node: true
 plugins:
   - flowtype
-  - prettier
 
 rules:
-  # https://github.com/prettier/eslint-plugin-prettier#installation
-  prettier/prettier: error
-
   # `eslint-plugin-flowtype` rule list based on `v3.11.x`
   # https://github.com/gajus/eslint-plugin-flowtype#eslint-plugin-flowtype
 
@@ -35,7 +31,8 @@ rules:
   flowtype/require-readonly-react-props: off
   flowtype/require-return-type: off
   flowtype/require-types-at-top: off
-  flowtype/require-valid-file-annotation: [error, always, { annotationStyle: line, strict: true }]
+  flowtype/require-valid-file-annotation:
+    [error, always, { annotationStyle: line, strict: true }]
   flowtype/require-variable-type: off
   flowtype/sort-keys: off
   flowtype/spread-exact-type: off
@@ -130,7 +127,7 @@ rules:
   no-implied-eval: error
   no-invalid-this: off
   no-iterator: error
-  no-labels: [error, {allowLoop: true}]
+  no-labels: [error, { allowLoop: true }]
   no-lone-blocks: error
   no-loop-func: error
   no-magic-numbers: off
@@ -168,7 +165,7 @@ rules:
   require-await: off # TODO
   require-unicode-regexp: off
   vars-on-top: error
-  yoda: [error, never, {exceptRange: true}]
+  yoda: [error, never, { exceptRange: true }]
 
   # Strict Mode
   # https://eslint.org/docs/rules/#strict-mode
@@ -187,7 +184,8 @@ rules:
   no-undef: error
   no-undef-init: error
   no-undefined: off
-  no-unused-vars: [error, {vars: all, args: after-used, argsIgnorePattern: "^_"}]
+  no-unused-vars:
+    [error, { vars: all, args: after-used, argsIgnorePattern: '^_' }]
   no-use-before-define: off
 
   # Node.js and CommonJS
@@ -208,15 +206,15 @@ rules:
   # Stylistic Issues
   # https://eslint.org/docs/rules/#stylistic-issues
 
-  camelcase: [error, {properties: always}]
+  camelcase: [error, { properties: always }]
   capitalized-comments: off # maybe
   consistent-this: off
   func-name-matching: off
   func-names: off
   func-style: off
   id-blacklist: off
   id-length: off
-  id-match: [error, "^(?:_?[a-zA-Z0-9]*)|[_A-Z0-9]+$"]
+  id-match: [error, '^(?:_?[a-zA-Z0-9]*)|[_A-Z0-9]+$']
   line-comment-position: off
   lines-around-comment: off
   lines-between-class-members: [error, always, { exceptAfterSingleLine: true }]
@@ -353,10 +351,10 @@ rules:
   yield-star-spacing: off
 
 overrides:
-  - files: "**/__tests__/**"
+  - files: '**/__tests__/**'
     rules:
       no-restricted-syntax: off
-  - files: "resources/**"
+  - files: 'resources/**'
     parserOptions:
       sourceType: script
     rules:

.github/CONTRIBUTING.md

@@ -1,5 +1,4 @@
-Contributing to graphql-js
-==========================
+# Contributing to graphql-js
 
 We want to make contributing to this project as easy and transparent as
 possible. Hopefully this document makes the process for contributing clear and
@@ -72,23 +71,23 @@ This will watch the file system run any relevant lint, tests, and type checks au
 This project uses [Prettier](https://prettier.io/) for standard formatting. To
 ensure your pull request matches the style guides, run `npm run prettier`.
 
-* 2 spaces for indentation (no tabs)
-* 80 character line length strongly preferred.
-* Prefer `'` over `"`
-* ES6 syntax when possible. However do not rely on ES6-specific functions to be available.
-* Use [Flow types](https://flowtype.org/).
-* Use semicolons;
-* Trailing commas,
-* Avd abbr wrds.
+- 2 spaces for indentation (no tabs)
+- 80 character line length strongly preferred.
+- Prefer `'` over `"`
+- ES6 syntax when possible. However do not rely on ES6-specific functions to be available.
+- Use [Flow types](https://flowtype.org/).
+- Use semicolons;
+- Trailing commas,
+- Avd abbr wrds.
 
 ## Release on NPM
 
-*Only core contributors may release to NPM.*
+_Only core contributors may release to NPM._
 
 To release a new version on NPM, first ensure all tests pass with `npm test`,
 then use `npm version patch|minor|major` in order to increment the version in
 package.json and tag and commit a release. Then `git push && git push --tags`
-this change so Travis CI can deploy to NPM. *Do not run `npm publish` directly.*
+this change so Travis CI can deploy to NPM. _Do not run `npm publish` directly._
 Once published, add [release notes](https://github.com/graphql/graphql-js/tags).
 Use [semver](https://semver.org/) to determine which version part to increment.
 

.github/ISSUE_TEMPLATE.md

@@ -10,7 +10,7 @@ Please do not post general questions directly as GitHub issues. They may sit for
 
 Before filing a new issue, make sure an issue for your problem doesn't already exist.
 
-The best way to get a bug fixed is to provide a *pull request* with a simplified failing test case (or better yet, include a fix).
+The best way to get a bug fixed is to provide a _pull request_ with a simplified failing test case (or better yet, include a fix).
 
 # Feature requests
 

.nycflowrc.yml

@@ -1,10 +1,10 @@
 include:
-  - "src/"
+  - 'src/'
 exclude:
-  - "src/polyfills"
+  - 'src/polyfills'
 clean: true
-temp-directory: "coverage/flow"
-report-dir: "coverage/flow"
+temp-directory: 'coverage/flow'
+report-dir: 'coverage/flow'
 skip-full: true
 skip-empty: true
 reporter: [json, html, text]

.nycrc.yml

@@ -1,9 +1,9 @@
 include:
-  - "src/"
+  - 'src/'
 exclude:
-  - "src/polyfills"
+  - 'src/polyfills'
 clean: true
-temp-directory: "coverage/tests"
-report-dir: "coverage/tests"
+temp-directory: 'coverage/tests'
+report-dir: 'coverage/tests'
 skip-full: true
 reporter: [json, html, text]

.travis.yml

@@ -5,10 +5,10 @@ cache: yarn
 
 # https://github.com/nodejs/Release
 node_js:
-- '12'
-- '10'
-- '8'
-- '6'
+  - '12'
+  - '10'
+  - '8'
+  - '6'
 
 script: |
   if [[ "$(node -pe process.version)" == v10.* ]]; then # Is latest LTS?
@@ -20,11 +20,11 @@ script: |
 
 jobs:
   include:
-  - stage: deploy
-    if: type = push AND branch = master
-    script: npm run gitpublish
-    skip_cleanup: true
-    node_js: '10'
+    - stage: deploy
+      if: type = push AND branch = master
+      script: npm run gitpublish
+      skip_cleanup: true
+      node_js: '10'
 
 notifications:
   irc:
@@ -33,7 +33,7 @@ notifications:
     on_failure: change
     skip_join: true
     channels:
-    - chat.freenode.net#graphql
+      - chat.freenode.net#graphql
   slack:
     secure: 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
 

README.md

@@ -11,7 +11,6 @@ https://graphql.org/graphql-js/.
 
 Looking for help? Find resources [from the community](https://graphql.org/community/).
 
-
 ## Getting Started
 
 An overview of GraphQL in general is available in the
@@ -47,7 +46,7 @@ import {
   graphql,
   GraphQLSchema,
   GraphQLObjectType,
-  GraphQLString
+  GraphQLString,
 } from 'graphql';
 
 var schema = new GraphQLSchema({
@@ -58,10 +57,10 @@ var schema = new GraphQLSchema({
         type: GraphQLString,
         resolve() {
           return 'world';
-        }
-      }
-    }
-  })
+        },
+      },
+    },
+  }),
 });
 ```
 
@@ -76,13 +75,11 @@ Then, serve the result of a query against that type schema.
 var query = '{ hello }';
 
 graphql(schema, query).then(result => {
-
   // Prints
   // {
   //   data: { hello: "world" }
   // }
   console.log(result);
-
 });
 ```
 
@@ -94,7 +91,6 @@ it, reporting errors otherwise.
 var query = '{ boyhowdy }';
 
 graphql(schema, query).then(result => {
-
   // Prints
   // {
   //   errors: [
@@ -103,7 +99,6 @@ graphql(schema, query).then(result => {
   //   ]
   // }
   console.log(result);
-
 });
 ```
 

docs/APIReference-GraphQL.md

@@ -17,7 +17,7 @@ var { graphql } = require('graphql'); // CommonJS
 
 ## Overview
 
-*Entry Point*
+_Entry Point_
 
 <ul class="apiIndex">
   <li>
@@ -28,7 +28,7 @@ var { graphql } = require('graphql'); // CommonJS
   </li>
 </ul>
 
-*Schema*
+_Schema_
 
 <ul class="apiIndex">
   <li>
@@ -39,7 +39,7 @@ var { graphql } = require('graphql'); // CommonJS
   </li>
 </ul>
 
-*Type Definitions*
+_Type Definitions_
 
 <ul class="apiIndex">
   <li>
@@ -92,7 +92,7 @@ var { graphql } = require('graphql'); // CommonJS
   </li>
 </ul>
 
-*Scalars*
+_Scalars_
 
 <ul class="apiIndex">
   <li>
@@ -127,7 +127,7 @@ var { graphql } = require('graphql'); // CommonJS
   </li>
 </ul>
 
-*Errors*
+_Errors_
 
 <ul class="apiIndex">
   <li>