30 lines
725 B
JavaScript
30 lines
725 B
JavaScript
new Vue({
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el: "#app",
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data: {
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keyword: "",
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courses: [
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{ id: 1, title: "Vue 实例入门" },
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{ id: 2, title: "Vue 指令系统" },
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{ id: 3, title: "组件通信实战" },
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],
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},
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computed: {
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filteredCourses() {
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// 任务：返回过滤后的课程列表
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const value = this.keyword.trim().toUpperCase()
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return this.courses.filter(item => item.title.toUpperCase().includes(value))
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},
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matchedCount() {
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// 任务：返回 filteredCourses 的数量
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return this.filteredCourses.length;
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},
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},
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watch: {
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keyword(newValue) {
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// 任务：在控制台输出关键字变化
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console.log(`筛选关键词：${newValue}`);
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},
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},
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});
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