feat: basic code and configurations

.eslintrc.json

@@ -0,0 +1,33 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true
+  },
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "prettier"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "plugins": ["@typescript-eslint", "eslint-plugin-tsdoc"],
+  "rules": {
+    "@typescript-eslint/no-unused-vars": "error",
+    "@typescript-eslint/consistent-type-definitions": ["error", "type"],
+    "require-jsdoc": [
+      "error",
+      {
+        "require": {
+          "FunctionDeclaration": true,
+          "MethodDefinition": true,
+          "ClassDeclaration": true,
+          "ArrowFunctionExpression": true,
+          "FunctionExpression": true
+        }
+      }
+    ]
+  }
+}