feat: Add Vue3 exercises and interview plan

- Introduced Vue3 exercises covering composable API, reactivity, lifecycle hooks, and built-in components.
- Added structured interview plan for frontend candidates focusing on HTML, CSS, JavaScript, TypeScript, and Vue.
- Included starter files for each exercise and detailed README documentation for guidance.
This commit is contained in:
charlie
2026-03-24 23:02:58 +08:00
parent 3435848495
commit d0d8be443b
41 changed files with 1551 additions and 5 deletions

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# 练习 10nextTick 和组件 v-model
## 目标
学会在 DOM 更新完成后执行逻辑,并理解 Vue3 组件 `v-model` 的通信约定。
## 你要练什么
- `nextTick`
- 组件 `v-model`
- `modelValue`
- `update:modelValue`
## 任务
- 封装一个搜索输入子组件
- 父组件通过 `v-model` 绑定关键字
- 点击“展开搜索区”后,等 DOM 更新完成再聚焦输入框
- 在控制台输出关键字变化
## 文件
- [starter.html](/Users/lijiaqing/home/wwwroot/front-end-example/08-vue3/10-next-tick-and-component-v-model/starter.html)
- [starter.js](/Users/lijiaqing/home/wwwroot/front-end-example/08-vue3/10-next-tick-and-component-v-model/starter.js)

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>nextTick 和组件 v-model</title>
<style>
body { margin: 0; padding: 32px; font-family: "PingFang SC", sans-serif; background: #f4f7fb; }
.panel { max-width: 760px; margin: 0 auto; padding: 24px; border-radius: 18px; background: #fff; border: 1px solid #d9e4f1; }
input, button { padding: 12px 14px; border-radius: 12px; font: inherit; }
input { width: 100%; border: 1px solid #cad6e8; }
button { border: 0; background: #2d6cdf; color: #fff; cursor: pointer; margin-bottom: 16px; }
</style>
</head>
<body>
<section id="app" class="panel">
<button type="button" @click="toggleSearch">展开搜索区</button>
<div v-if="showSearch">
<search-input ref="searchBox" v-model="keyword"></search-input>
</div>
<p>当前关键字:{{ keyword }}</p>
</section>
<script src="https://cdn.jsdelivr.net/npm/vue@3/dist/vue.global.js"></script>
<script src="./starter.js"></script>
</body>
</html>

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const { createApp, ref, nextTick, watch } = Vue;
createApp({
components: {
SearchInput: {
props: {
modelValue: {
type: String,
default: "",
},
},
emits: ["update:modelValue"],
template: `
<input
ref="inputEl"
:value="modelValue"
type="text"
placeholder="请输入课程关键字"
@input="$emit('update:modelValue', $event.target.value)"
/>
`,
methods: {
focus() {
this.$refs.inputEl.focus();
},
},
},
},
setup() {
const showSearch = ref(false);
const keyword = ref("");
const searchBox = ref(null);
watch(keyword, (newValue) => {
// 任务:在控制台输出关键字变化
});
async function toggleSearch() {
// 任务:
// 1. 切换 showSearch.value
// 2. 如果展开了await nextTick()
// 3. 通过 searchBox.value.focus() 聚焦输入框
}
return {
showSearch,
keyword,
searchBox,
toggleSearch,
};
},
}).mount("#app");