11

.vitepress/config.mts

@@ -171,7 +171,10 @@ export default defineConfig({
 				{
 					text: '实践',
 					collapsed: false,
-					items: [{ text: '1. 索引签名', link: '/typescript/practice/No1' }],
+					items: [
+						{ text: '1. 索引签名', link: '/typescript/practice/No1' },
+						{ text: '2. TS中泛型 Record＜string, any＞', link: '/typescript/practice/No2' },
+					],
 				},
 			],
 			'/vitepress/': [

typescript/practice/No2.md

@@ -0,0 +1,18 @@
+# TS中泛型 Record＜string, any＞
+
+### Record
+
+- Record的内部定义，接收两个泛型参数；Record后面的泛型就是对象键和值的类型。
+
+- Record 主要的作用是用来定义对象
+
+```js
+const obj: Record<string, string> = {"a": '1'};
+
+// 或者复杂一点的
+interface Person {
+  name: string;
+  age: number;
+}
+const obj: Record<string, Person> = {"a": { name: 'dj', age: 12 }};
+```