add typescript support to node snippet

lib/snippets/node/Assets.ts

@@ -28,4 +28,17 @@ const index = '';
 const npmrc = `@scode:registry=https://npm.scode.ovh
 `;
 
-export { eslintrc, gitignore, index, npmrc };
+const tsconfig = `{
+  "compilerOptions": {
+    "target": "es5",
+    "module": "commonjs",
+    "outDir": "./dist", 
+    "rootDir": "./lib",
+    "strict": true, 
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true  
+  }
+}
+`;
+
+export { eslintrc, gitignore, index, npmrc, tsconfig };

lib/snippets/node/index.ts

@@ -10,8 +10,7 @@ import { Input } from 'enquirer';
 import { Snippet } from '../../Snippet';
 import { apply_template, modify_json, run_command } from '../../Helper';
 
-
-import { eslintrc, gitignore, index, npmrc } from './Assets';
+import { eslintrc, gitignore, index, npmrc, tsconfig } from './Assets';
 
 export default class Node implements Snippet {
   public async start (): Promise<void> {
@@ -20,15 +19,25 @@ export default class Node implements Snippet {
     )
       .run ();
 
+    const use_ts = await new confirm ({
+      message: 'use typescript?',
+      initial: false
+    })
+      .run ();
+
     await apply_template (eslintrc, path.join (folder, '.eslintrc.js'));
     await apply_template (npmrc, path.join (folder, '.npmrc'));
     await apply_template (index, path.join (folder, 'index.js'));
     await apply_template (gitignore, path.join (folder, '.gitignore'));
+    if (use_ts)
+      await apply_template (tsconfig, path.join (folder, 'tsconfig.json'));
 
     run_command ('git init', folder);
     run_command ('yarn init -y', folder);
     run_command (
-      'yarn add --dev @scode/eslint-config eslint nyc ava',
+      `yarn add --dev @scode/eslint-config${use_ts
+        ? '-ts typescript @ava/typescript'
+        : ''} eslint nyc ava`,
       folder
     );