Merge pull request #160 from dependents/XhmikosR-patch-1

tsconfig: use es2019

Author: joscha

tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es2018",
+    "target": "es2019",
     "paths": {
       "*": ["./src/*"]
     }