Keep tsconfig

.gitignore

@@ -102,5 +102,4 @@ package-lock.json
 
 # Files managed by operational-scripts
 tslint.json
-tsconfig.json
 .prettierrc

tsconfig.json

@@ -0,0 +1,25 @@
+{
+  "exclude": ["node_modules", "dist", "lib", "__tests__", "**/*.test*", "**/*.spec*"],
+  "include": ["src"],
+  "compilerOptions": {
+    "skipLibCheck": true,
+    "target": "es5",
+    "module": "esnext",
+    "lib": ["es2015", "dom", "es2016.array.include", "es2017.object"],
+    "jsx": "react",
+    "declaration": true,
+    "declarationMap": true,
+    "rootDir": "./src",
+    "outDir": "./lib",
+    "downlevelIteration": true,
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "moduleResolution": "node",
+    "allowSyntheticDefaultImports": true,
+    "esModuleInterop": true,
+    "inlineSourceMap": true
+  }
+}