Revert note about declarationDir. Update ts to the latest version

README.md

@@ -36,26 +36,26 @@ npm run type-check -- --watch
 Either run the following:
 
 ```sh
-npm install --save-dev typescript@2.7.2
-npm install --save-dev @babel/[email protected].44
-npm install --save-dev @babel/[email protected].44
-npm install --save-dev @babel/[email protected].44
-npm install --save-dev @babel/[email protected].44
-npm install --save-dev @babel/[email protected].44
-npm install --save-dev @babel/[email protected].44
+npm install --save-dev typescript@2.9.1
+npm install --save-dev @babel/[email protected].49
+npm install --save-dev @babel/[email protected].49
+npm install --save-dev @babel/[email protected].49
+npm install --save-dev @babel/[email protected].49
+npm install --save-dev @babel/[email protected].49
+npm install --save-dev @babel/[email protected].49
 ```
 
 or make sure that you add the appropriate `"devDependencies"` entries to your `package.json` and run `npm install`:
 
 ```json
 "devDependencies": {
-    "@babel/cli": "^7.0.0-beta.44",
-    "@babel/core": "^7.0.0-beta.44",
-    "@babel/plugin-proposal-class-properties": "^7.0.0-beta.44",
-    "@babel/plugin-proposal-object-rest-spread": "^7.0.0-beta.44",
-    "@babel/preset-env": "^7.0.0-beta.44",
-    "@babel/preset-typescript": "^7.0.0-beta.44",
-    "typescript": "^2.8.1"
+    "@babel/cli": "^7.0.0-beta.49",
+    "@babel/core": "^7.0.0-beta.49",
+    "@babel/plugin-proposal-class-properties": "^7.0.0-beta.49",
+    "@babel/plugin-proposal-object-rest-spread": "^7.0.0-beta.49",
+    "@babel/preset-env": "^7.0.0-beta.49",
+    "@babel/preset-typescript": "^7.0.0-beta.49",
+    "typescript": "^2.9.1"
 }
 ```
 
@@ -67,6 +67,8 @@ Then run
 tsc --init --declaration --allowSyntheticDefaultImports --target esnext --outDir lib
 ```
 
+**Note:** TypeScript also provides a `--declarationDir` option which specifies an output directory for generated declaration files (`.d.ts` files). For our uses where `--emitDeclarationOnly` is turned on, `--outDir` works equivalently.
+
 ## Create your `.babelrc`
 
 Then copy the `.babelrc` in this repo, or the below:
@@ -105,7 +107,7 @@ Install the [@babel/preset-react](https://www.npmjs.com/package/@babel/preset-re
 
 ```sh
 npm install --save react react-dom @types/react @types/react-dom
-npm install --save-dev @babel/[email protected].44
+npm install --save-dev @babel/[email protected].49
 ```
 
 ### Update `.babelrc`

package.json

@@ -7,12 +7,12 @@
     "build": "tsc --emitDeclarationOnly && babel src --out-dir lib --extensions \".ts,.tsx\""
   },
   "devDependencies": {
-    "@babel/cli": "^7.0.0-beta.44",
-    "@babel/core": "^7.0.0-beta.44",
-    "@babel/plugin-proposal-class-properties": "^7.0.0-beta.44",
-    "@babel/plugin-proposal-object-rest-spread": "^7.0.0-beta.44",
-    "@babel/preset-env": "^7.0.0-beta.44",
-    "@babel/preset-typescript": "^7.0.0-beta.44",
-    "typescript": "^2.8.1"
+    "@babel/cli": "^7.0.0-beta.49",
+    "@babel/core": "^7.0.0-beta.49",
+    "@babel/plugin-proposal-class-properties": "^7.0.0-beta.49",
+    "@babel/plugin-proposal-object-rest-spread": "^7.0.0-beta.49",
+    "@babel/preset-env": "^7.0.0-beta.49",
+    "@babel/preset-typescript": "^7.0.0-beta.49",
+    "typescript": "^2.9.1"
   }
 }

tsconfig.json

@@ -8,11 +8,12 @@
     // "checkJs": true,                       /* Report errors in .js files. */
     // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
     "declaration": true,                      /* Generates corresponding '.d.ts' file. */
-    // "declaration": "lib",                  /* Output directory for generated declaration files. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
     // "sourceMap": true,                     /* Generates corresponding '.map' file. */
     // "outFile": "./",                       /* Concatenate and emit output to single file. */
     "outDir": "lib",                          /* Redirect output structure to the directory. */
     // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "composite": true,                     /* Enable project compilation */
     // "removeComments": true,                /* Do not emit comments to output. */
     // "noEmit": true,                        /* Do not emit outputs. */
     // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
@@ -42,7 +43,7 @@
     // "typeRoots": [],                       /* List of folders to include type definitions from. */
     // "types": [],                           /* Type declaration files to be included in compilation. */
     "allowSyntheticDefaultImports": true,     /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
-    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
     // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
 
     /* Source Map Options */
@@ -54,5 +55,8 @@
     /* Experimental Options */
     // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
     // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Advanced Options */
+    // "declarationDir": "lib"                /* Output directory for generated declaration files. */
   }
 }