added typings script

Author: lamweili

package.json

@@ -31,8 +31,9 @@
   "scripts": {
     "prepush": "npm test",
     "commitmsg": "validate-commit-msg",
-    "pretest": "eslint \"lib/**/*.js\" \"test/**/*.js\"",
-    "test": "tap \"test/tap/**/*.js\" --cov",
+    "pretest": "eslint 'lib/**/*.js' 'test/**/*.js'",
+    "test": "tap 'test/tap/**/*.js' --100",
+    "typings": "tsc -p types/tsconfig.json",
     "codecov": "tap 'test/tap/**/*.js' --cov --coverage-report=lcov && codecov"
   },
   "directories": {

types/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "compileOnSave": false,
+  "compilerOptions": {
+    "strict": true,
+    "noUnusedParameters": true,
+    "noUnusedLocals": false,
+    "noEmit": true
+  }
+}