Add script compile, start and dev

package.json

@@ -7,15 +7,18 @@
   "author": "Remi Planel <rplanel@pasteur.fr>",
   "license": "MIT",
   "scripts": {
-    "serve": "parcel ./src/index.html",
+    "dev": "parcel src/scripts/index.ts",
+    "start": "parcel src/index.html",
     "watch": "parcel watch ./src/index.html",
-    "build": "parcel build ./src/index.html"
+    "build": "parcel build ./src/index.html",
+    "compile": "tsc"
   },
   "devDependencies": {
     "typescript": "^3.4.1"
   },
   "dependencies": {
     "@types/d3": "^5.7.1",
+    "d3-path": "^1.0.7",
     "d3-scale": "^3.0.0",
     "d3-selection": "^1.4.0",
     "parcel-bundler": "^1.12.3"