add typescript

.gitignore

@@ -0,0 +1,2 @@
+node_modules
+dist

.vscode/launch.json

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+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Debug TypeScript in Node.js",
+      "preLaunchTask": "ts: build all",
+      "program": "${file}",
+      "cwd": "${workspaceFolder}",
+      "protocol": "inspector",
+      "outFiles": [
+        "${workspaceFolder}/dist/**/*.js"
+      ]
+    },
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Debug TypeScript with webpack",
+      "sourceMaps": true,
+      "preLaunchTask": "webpack",
+      "program": "${file}",
+      "cwd": "${workspaceFolder}",
+      "protocol": "inspector",
+      "outFiles": [
+        "${workspaceFolder}/dist/**/*.js"
+      ]
+    },
+  ]
+}

.vscode/tasks.json

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+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558 
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "ts: build all",
+            "type": "typescript",
+            "tsconfig": "tsconfig.json",
+            "problemMatcher": [
+                "$tsc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },
+        {
+            "label": "ts: build current",
+            "type": "shell",
+            "command": "./node_modules/.bin/tsc",
+            "args": [
+                "${file}"
+            ],
+            "problemMatcher": [
+                "$tsc"
+            ]
+        },
+        {
+            "label": "webpack",
+            "options": {
+                "cwd": "${workspaceFolder}/src"
+            },
+            "type": "shell",
+            "command": "npm",
+            "args": [
+                "run",
+                "build",
+                "--",
+                "${fileBasename}"
+            ],
+            "problemMatcher": []
+        }
+    ]
+}