refactor: rewrite code with typescript and add unit test

.editorconfig

@@ -9,4 +9,7 @@ indent_size = 2
 end_of_line = crlf
 charset = utf-8
 trim_trailing_whitespace = false
-insert_final_newline = false
+insert_final_newline = false
+
+[.json]
+trailing_comma = none

.eslintrc

@@ -0,0 +1,9 @@
+{
+  "parser": "@typescript-eslint/parser",
+  "extends": ["plugin:@typescript-eslint/recommended"],
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "rules": {}
+}

.gitignore

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

.prettierignore

@@ -0,0 +1,7 @@
+*.md
+dist
+node_modules
+.vscode
+pnpm-lock.yaml
+.release-it.json
+.eslintrc

.prettierrc.js → .prettierrc.mjs

@@ -1,6 +1,7 @@
-module.exports = {
+export default {
   trailingComma: 'es5',
   tabWidth: 2,
   semi: false,
   singleQuote: true,
-}
+  trailingComma: 'none'
+}

.vscode/settings.json

@@ -0,0 +1,4 @@
+{
+  "editor.formatOnSave": true,
+  "editor.defaultFormatter": "esbenp.prettier-vscode"
+}