Improve typescript types

.gitignore

@@ -5,6 +5,7 @@
 /_dev
 /coverage
 package-lock.json
+/test/ts/**/*.js
 
 # Additional bundles
 /devtools.js

package.json

@@ -9,7 +9,7 @@
   "minified:main": "dist/preact.min.js",
   "types": "dist/preact.d.ts",
   "scripts": {
-    "clean": "rimraf dist/ devtools.js devtools.js.map debug.js debug.js.map",
+    "clean": "rimraf dist/ devtools.js devtools.js.map debug.js debug.js.map test/ts/**/*.js",
     "copy-flow-definition": "copyfiles -f src/preact.js.flow dist",
     "copy-typescript-definition": "copyfiles -f src/preact.d.ts dist",
     "build": "npm-run-all --silent clean transpile copy-flow-definition copy-typescript-definition strip optimize minify size",
@@ -27,7 +27,7 @@
     "size": "node -e \"process.stdout.write('gzip size: ')\" && gzip-size --raw dist/preact.min.js",
     "test": "npm-run-all lint --parallel test:mocha test:karma test:ts test:flow test:size",
     "test:flow": "flow check",
-    "test:ts": "tsc -p test/ts/",
+    "test:ts": "tsc -p test/ts/ && mocha --require babel-register test/ts/**/*-test.js",
     "test:mocha": "mocha --recursive --require babel-register test/shared test/node",
     "test:karma": "karma start test/karma.conf.js --single-run",
     "test:mocha:watch": "npm run test:mocha -- --watch",
@@ -74,13 +74,16 @@
   },
   "homepage": "https://github.com/developit/preact",
   "devDependencies": {
+    "@types/chai": "^3.5.2",
+    "@types/mocha": "^2.2.43",
+    "@types/node": "^8.0.44",
     "babel-cli": "^6.24.1",
     "babel-core": "^6.24.1",
     "babel-eslint": "^7.2.3",
     "babel-loader": "^7.0.0",
     "babel-plugin-transform-object-rest-spread": "^6.23.0",
     "babel-plugin-transform-react-jsx": "^6.24.1",
-    "babel-preset-env": "^1.5.1",
+    "babel-preset-env": "^1.6.1",
     "bundlesize": "^0.13.2",
     "chai": "^3.4.1",
     "copyfiles": "^1.0.0",
@@ -117,7 +120,7 @@
     "rollup-plugin-node-resolve": "^3.0.0",
     "sinon": "^2.2.0",
     "sinon-chai": "^2.8.0",
-    "typescript": "^2.2.2",
+    "typescript": "^2.5.3",
     "uglify-js": "^2.7.5",
     "webpack": "^2.4.1"
   },