Add es2020 to lib

Rokt33r · Rokt33r · commit 2c57e988d584 · 2020-11-03T11:35:26.000+09:00
diff --git a/tsconfig.json b/tsconfig.json
@@ -12,7 +12,7 @@
     "jsx": "react",
     "allowJs": true,
     "checkJs": false,
-    "lib": ["dom", "esnext"],
+    "lib": ["dom", "esnext", "es2020"],
     "forceConsistentCasingInFileNames": true,
     "experimentalDecorators": true,
     "noUnusedParameters": true,
