feat: add TypeScript declaration file

Author: haoqunjiang

index.d.ts

@@ -0,0 +1,34 @@
+type PluginData = {
+  importer: string
+  content: string
+}
+type AdditionalConfigItem = {
+  devDependencies?: Record<string, string>
+  beforeVuePlugin?: PluginData[]
+  afterVuePlugin?: PluginData[]
+}
+
+export default function createConfig(options: {
+  styleGuide?: 'default'
+  hasTypeScript?: boolean
+  needsPrettier?: boolean
+  needsOxlint?: boolean
+  additionalConfigs?: AdditionalConfigItem[]
+}): {
+  pkg: {
+    scripts: Record<string, string>
+    devDependencies: Record<string, string>
+  }
+  files: {
+    'eslint.config.js': string
+    '.editorconfig': string
+    '.prettierrc.json'?: string
+  }
+}
+
+/**
+ * Recursively merge the content of the new object to the existing one
+ * @param {object} target the existing object
+ * @param {object} obj the new object
+ */
+export function deepMerge(target: object, obj: object): object

index.js

@@ -153,8 +153,8 @@ const mergeArrayWithDedupe = (a, b) => Array.from(new Set([...a, ...b]))
 
 /**
  * Recursively merge the content of the new object to the existing one
- * @param {Object} target the existing object
- * @param {Object} obj the new object
+ * @param {object} target the existing object
+ * @param {object} obj the new object
  */
 export function deepMerge(target, obj) {
   for (const key of Object.keys(obj)) {