feat: ts学习之never使用场景

src/views/demo/typescript/index.vue

@@ -0,0 +1,20 @@
+<template>
+    <div class="p-5 space-y-5 !bg-gray-100">
+        <el-card header="never类型使用场景">
+            <h1 @click="limitParamsType('test')">传入的类型不能为number</h1>
+        </el-card>
+    </div>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue';
+
+const limitParamsType = <T,>(parmas: T extends number ? never : T) => {
+    console.log(parmas);
+};
+
+limitParamsType('acc');
+// limitParamsType(123)
+</script>
+
+<style lang="scss" scoped></style>