Upgrade typescript to 4.2.3

package-lock.json

@@ -1,13 +1,35 @@
 {
   "name": "typingfreaks",
   "version": "0.0.1",
-  "lockfileVersion": 1,
+  "lockfileVersion": 2,
   "requires": true,
+  "packages": {
+    "": {
+      "version": "0.0.1",
+      "license": "ISC",
+      "devDependencies": {
+        "typescript": "^4.0.0"
+      }
+    },
+    "node_modules/typescript": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.3.tgz",
+      "integrity": "sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==",
+      "dev": true,
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=4.2.0"
+      }
+    }
+  },
   "dependencies": {
     "typescript": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.0.1.tgz",
-      "integrity": "sha512-zQIMOmC+372pC/CCVLqnQ0zSBiY7HHodU7mpQdjiZddek4GMj31I3dUJ7gAs9o65X7mnRma6OokOkc6f9jjfBg==",
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.3.tgz",
+      "integrity": "sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==",
       "dev": true
     }
   }

package.json

@@ -9,7 +9,6 @@
   "author": "Thomas Dy <thatsmydoing@gmail.com",
   "license": "ISC",
   "devDependencies": {
-    "typescript": "^3.0.1"
-  },
-  "dependencies": {}
+    "typescript": "^4.0.0"
+  }
 }