react · SamChou19815 · Jul 10, 2026
diff --git a/.prettierrc.js b/.prettierrc.js
@@ -7,11 +7,6 @@
  * @format
  */
 
-let plugins = ['prettier-plugin-hermes-parser'];
-try {
-  plugins = require('./.prettier-plugins.fb.js');
-} catch {}
-
 module.exports = {
   arrowParens: 'avoid',
   bracketSameLine: true,
@@ -20,7 +15,6 @@ module.exports = {
   singleQuote: true,
   trailingComma: 'all',
   endOfLine: 'lf',
-  plugins,
   overrides: [
     {
       files: ['*.code-workspace'],
@@ -31,7 +25,7 @@ module.exports = {
     {
       files: ['*.js', '*.js.flow'],
       options: {
-        parser: 'hermes',
+        parser: 'flow',
       },
     },
     {

diff --git a/flow-typed/environment/node.js b/flow-typed/environment/node.js
@@ -457,8 +457,7 @@ declare class child_process$ChildProcessTyped<
   TStdin extends stream$Writable | null,
   TStdout extends stream$Readable | null,
   TStderr extends stream$Readable | null,
-> extends events$EventEmitter
-{
+> extends events$EventEmitter {
   +stdin: TStdin;
   +stdout: TStdout;
   +stderr: TStderr;
@@ -578,8 +577,7 @@ declare module 'child_process' {
   declare function execFile(
     file: string,
     argsOrCallback?:
-      | ReadonlyArray<string>
-      | child_process$execFileCallback<string>,
+      ReadonlyArray<string> | child_process$execFileCallback<string>,
     callback?: child_process$execFileCallback<string>,
   ): child_process$ChildProcessTyped<
     stream$Writable,
@@ -928,14 +926,7 @@ type crypto$key =
 
 declare class crypto$KeyObject {
   +asymmetricKeyType?:
-    | 'rsa'
-    | 'rsa-pss'
-    | 'dsa'
-    | 'ec'
-    | 'ed25519'
-    | 'ed448'
-    | 'x25519'
-    | 'x448';
+    'rsa' | 'rsa-pss' | 'dsa' | 'ec' | 'ed25519' | 'ed448' | 'x25519' | 'x448';
   +asymmetricKeySize?: number;
   +symmetricKeySize?: number;
   +type: 'secret' | 'public' | 'private';
@@ -2560,9 +2551,9 @@ declare class http$Agent<+SocketT = net$Socket> {
   sockets: {[name: string]: ReadonlyArray<SocketT>, ...};
 }
 
-declare class http$IncomingMessage<SocketT = net$Socket>
-  extends stream$Readable
-{
+declare class http$IncomingMessage<
+  SocketT = net$Socket,
+> extends stream$Readable {
   headers: Object;
   rawHeaders: Array<string>;
   httpVersion: string;
@@ -2578,9 +2569,9 @@ declare class http$IncomingMessage<SocketT = net$Socket>
   rawTrailers: Array<string>;
 }
 
-declare class http$ClientRequest<+SocketT = net$Socket>
-  extends stream$Writable
-{
+declare class http$ClientRequest<
+  +SocketT = net$Socket,
+> extends stream$Writable {
   abort(): void;
   aborted: boolean;
   +connection: SocketT | null;
@@ -2878,10 +2869,7 @@ declare class net$Socket extends stream$Duplex {
   destroyed: boolean;
   end(
     chunkOrEncodingOrCallback?:
-      | Buffer
-      | Uint8Array
-      | string
-      | ((data: any) => void),
+      Buffer | Uint8Array | string | ((data: any) => void),
     encodingOrCallback?: string | ((data: any) => void),
     callback?: (data: any) => void,
   ): this;
@@ -3211,9 +3199,9 @@ declare module 'perf_hooks' {
     +detail?: T;
   }
 
-  declare export class PerformanceMeasure<T = unknown>
-    extends PerformanceEntry
-  {
+  declare export class PerformanceMeasure<
+    T = unknown,
+  > extends PerformanceEntry {
     +entryType: 'measure';
     +detail?: T;
   }
@@ -3398,11 +3386,7 @@ declare module 'querystring' {
  */
 declare module 'node:sqlite' {
   declare export type SupportedValueType =
-    | null
-    | number
-    | bigint
-    | string
-    | Uint8Array;
+    null | number | bigint | string | Uint8Array;
 
   declare export type DatabaseSyncOptions = Readonly<{
     open?: boolean,
@@ -5565,9 +5549,7 @@ declare module 'repl' {
     writer?: (object: any, options?: util$InspectOptions) => string,
     completer?: readline$InterfaceCompleter,
     replMode?:
-      | $SymbolReplModeMagic
-      | $SymbolReplModeSloppy
-      | $SymbolReplModeStrict,
+      $SymbolReplModeMagic | $SymbolReplModeSloppy | $SymbolReplModeStrict,
     breakEvalOnSigint?: boolean,
     ...
   }): REPLServer;

diff --git a/flow-typed/npm/babel-traverse_v7.x.x.js b/flow-typed/npm/babel-traverse_v7.x.x.js
@@ -246,12 +246,7 @@ declare module '@babel/traverse' {
   }
 
   declare export type BindingKind =
-    | 'var'
-    | 'let'
-    | 'const'
-    | 'module'
-    | 'hoisted'
-    | 'unknown';
+    'var' | 'let' | 'const' | 'module' | 'hoisted' | 'unknown';
 
   declare export class Binding {
     constructor(opts: {
@@ -435,13 +430,7 @@ declare module '@babel/traverse' {
     isBaseType(baseName: string, soft?: boolean): boolean;
     couldBeBaseType(
       name:
-        | 'string'
-        | 'number'
-        | 'boolean'
-        | 'any'
-        | 'mixed'
-        | 'empty'
-        | 'void',
+        'string' | 'number' | 'boolean' | 'any' | 'mixed' | 'empty' | 'void',
     ): boolean;
     baseTypeStrictlyMatches(right: NodePath<>): ?boolean;
     isGenericType(genericName: string): boolean;
@@ -1446,8 +1435,7 @@ declare module '@babel/traverse' {
   }>;
 
   declare export type VisitNode<-TNode extends BabelNode, TState> =
-    | VisitNodeFunction<TNode, TState>
-    | VisitNodeObject<TNode, TState>;
+    VisitNodeFunction<TNode, TState> | VisitNodeObject<TNode, TState>;
 
   declare export type Visitor<TState = void> = Readonly<{
     enter?: VisitNodeFunction<BabelNode, TState>,

diff --git a/flow-typed/npm/babel_v7.x.x.js b/flow-typed/npm/babel_v7.x.x.js
@@ -1293,8 +1293,7 @@ declare module '@babel/template' {
   };
 
   declare export type PublicReplacements =
-    | {[string]: ?BabelNode}
-    | Array<?BabelNode>;
+    {[string]: ?BabelNode} | Array<?BabelNode>;
 
   declare export type TemplateBuilder<T> = {
     // Build a new builder, merging the given options with the previous ones.

diff --git a/flow-typed/npm/commander_v12.x.x.js b/flow-typed/npm/commander_v12.x.x.js
@@ -15,8 +15,7 @@
 
 declare module 'commander' {
   declare type LiteralUnion<LiteralType, BaseType: string | number> =
-    | LiteralType
-    | {...BaseType, ...{[key: empty]: empty, ...}};
+    LiteralType | {...BaseType, ...{[key: empty]: empty, ...}};
 
   declare export class CommanderError mixins Error {
     code: string;
@@ -335,10 +334,7 @@ declare module 'commander' {
     outputError?: (str: string, write: (str: string) => void) => void;
   }
   export type AddHelpTextPosition =
-    | 'beforeAll'
-    | 'before'
-    | 'after'
-    | 'afterAll';
+    'beforeAll' | 'before' | 'after' | 'afterAll';
   export type HookEvent = 'preSubcommand' | 'preAction' | 'postAction';
   export type OptionValueSource = LiteralUnion<
     'default' | 'config' | 'env' | 'cli' | 'implied',

diff --git a/flow-typed/npm/electron-packager_v20.x.x.js b/flow-typed/npm/electron-packager_v20.x.x.js
@@ -49,21 +49,14 @@ declare module '@electron/packager' {
     ProductName?: string,
     InternalName?: string,
     'requested-execution-level'?:
-      | 'asInvoker'
-      | 'highestAvailable'
-      | 'requireAdministrator',
+      'asInvoker' | 'highestAvailable' | 'requireAdministrator',
     'application-manifest'?: string,
   }>;
 
   declare export type WindowsSignOptions = $FlowFixMe;
 
   declare export type OfficialArch =
-    | 'ia32'
-    | 'x64'
-    | 'armv7l'
-    | 'arm64'
-    | 'mips64el'
-    | 'universal';
+    'ia32' | 'x64' | 'armv7l' | 'arm64' | 'mips64el' | 'universal';
 
   declare export type OfficialPlatform = 'linux' | 'win32' | 'darwin' | 'mas';
 

diff --git a/flow-typed/npm/execa_v5.x.x.js b/flow-typed/npm/execa_v5.x.x.js
@@ -13,12 +13,7 @@
 
 declare module 'execa' {
   declare type StdIoOption =
-    | 'pipe'
-    | 'ipc'
-    | 'ignore'
-    | 'inherit'
-    | stream$Stream
-    | number;
+    'pipe' | 'ipc' | 'ignore' | 'inherit' | stream$Stream | number;
 
   declare type CommonOptions = {
     argv0?: string,
@@ -74,8 +69,7 @@ declare module 'execa' {
   };
 
   declare interface ExecaPromise
-    extends Promise<Result>,
-      child_process$ChildProcess {}
+    extends Promise<Result>, child_process$ChildProcess {}
 
   declare interface ExecaError extends ErrnoError {
     stdout: string;

diff --git a/flow-typed/npm/jest.js b/flow-typed/npm/jest.js
@@ -214,10 +214,7 @@ type FakeTimersConfig = {
  */
 
 type JestStyledComponentsMatcherValue =
-  | string
-  | JestAsymmetricEqualityType
-  | RegExp
-  | void;
+  string | JestAsymmetricEqualityType | RegExp | void;
 
 type JestStyledComponentsMatcherOptions = {
   media?: string,

diff --git a/flow-typed/npm/jsonc-parser_v2.2.x.js b/flow-typed/npm/jsonc-parser_v2.2.x.js
@@ -155,13 +155,7 @@ declare module 'jsonc-parser' {
     | 'InvalidCharacter'
     | '<unknown ParseErrorCode>';
   export type NodeType =
-    | 'object'
-    | 'array'
-    | 'property'
-    | 'string'
-    | 'number'
-    | 'boolean'
-    | 'null';
+    'object' | 'array' | 'property' | 'string' | 'number' | 'boolean' | 'null';
   export type Node = {
     type: NodeType,
     value?: any,

diff --git a/flow-typed/npm/node-fetch_v2.x.x.js b/flow-typed/npm/node-fetch_v2.x.x.js
@@ -157,12 +157,7 @@ declare module 'node-fetch' {
   }
 
   declare type ResponseType =
-    | 'basic'
-    | 'cors'
-    | 'default'
-    | 'error'
-    | 'opaque'
-    | 'opaqueredirect';
+    'basic' | 'cors' | 'default' | 'error' | 'opaque' | 'opaqueredirect';
 
   declare interface ResponseInit {
     headers?: HeaderInit;
@@ -172,12 +167,7 @@ declare module 'node-fetch' {
 
   declare type HeaderInit = Headers | Array<string>;
   declare type BodyInit =
-    | string
-    | null
-    | Buffer
-    | Blob
-    | Readable
-    | URLSearchParams;
+    string | null | Buffer | Blob | Readable | URLSearchParams;
 
   declare function fetch(
     url: string | URL | Request,

diff --git a/flow-typed/npm/pretty-format_v29.x.x.js b/flow-typed/npm/pretty-format_v29.x.x.js
@@ -37,9 +37,7 @@ declare type PrettyFormatPlugin =
 
 declare module 'pretty-format' {
   declare export type CompareKeys =
-    | ((a: string, b: string) => number)
-    | null
-    | void;
+    ((a: string, b: string) => number) | null | void;
   declare export function format(
     value: unknown,
     options?: ?{

diff --git a/flow-typed/npm/rxjs_v6.x.x.js b/flow-typed/npm/rxjs_v6.x.x.js
@@ -9,11 +9,14 @@
 declare interface rxjs$UnaryFunction<T, R> {
   (source: T): R;
 }
-declare interface rxjs$OperatorFunction<T, R>
-  extends rxjs$UnaryFunction<rxjs$Observable<T>, rxjs$Observable<R>> {}
+declare interface rxjs$OperatorFunction<T, R> extends rxjs$UnaryFunction<
+  rxjs$Observable<T>,
+  rxjs$Observable<R>,
+> {}
 declare type rxjs$FactoryOrValue<T> = T | (() => T);
-declare interface rxjs$MonoTypeOperatorFunction<T>
-  extends rxjs$OperatorFunction<T, T> {}
+declare interface rxjs$MonoTypeOperatorFunction<
+  T,
+> extends rxjs$OperatorFunction<T, T> {}
 declare interface rxjs$Timestamp<T> {
   value: T;
   timestamp: number;
@@ -47,9 +50,7 @@ declare interface rxjs$Subscribable<T> {
   ): rxjs$Unsubscribable;
 }
 declare type rxjs$ObservableInput<T> =
-  | rxjs$SubscribableOrPromise<T>
-  | Array<T>
-  | Iterable<T>;
+  rxjs$SubscribableOrPromise<T> | Array<T> | Iterable<T>;
 
 declare type rxjs$InteropObservable<T> = {
   [string | unknown]: () => rxjs$Subscribable<T>,
@@ -588,8 +589,7 @@ declare module 'rxjs' {
       (<T>(...sources: rxjs$ObservableInput<T>[]) => rxjs$Observable<T[]>),
     from<T>(
       input:
-        | rxjs$ObservableInput<T>
-        | rxjs$ObservableInput<rxjs$ObservableInput<T>>,
+        rxjs$ObservableInput<T> | rxjs$ObservableInput<rxjs$ObservableInput<T>>,
       scheduler?: rxjs$SchedulerLike,
     ): rxjs$Observable<T>,
     ArgumentOutOfRangeError: ArgumentOutOfRangeError,
@@ -630,9 +630,7 @@ declare module 'rxjs' {
     ) => rxjs$Observable<T>) &
       (<T, R>(
         ...observables: (
-          | rxjs$ObservableInput<any>
-          | rxjs$SchedulerLike
-          | number
+          rxjs$ObservableInput<any> | rxjs$SchedulerLike | number
         )[]
       ) => rxjs$Observable<R>) &
       (<T>(
@@ -3349,9 +3347,7 @@ declare module 'rxjs/webSocket' {
     _output: rxjs$Subject<T>;
     constructor(
       urlConfigOrSource:
-        | string
-        | WebSocketSubjectConfig<T>
-        | rxjs$Observable<T>,
+        string | WebSocketSubjectConfig<T> | rxjs$Observable<T>,
       destination?: rxjs$Observer<T>,
     ): void;
     lift<R>(operator: rxjs$Operator<T, R>): WebSocketSubject<R>;