877acb5a8f
- Implemented exercises for array high-order methods, memory and execution, switch statements, and final review. - Added starter and answer files for each exercise to facilitate learning. - Created a runner HTML file to execute JavaScript code and display console outputs. - Updated README files to include exercise objectives, tasks, and usage instructions.
31 lines
755 B
Markdown
31 lines
755 B
Markdown
# 练习 13：数组高阶函数
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## 目标
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学会使用数组高阶函数处理一组数据。
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## 你要练什么
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- `map()`
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- `filter()`
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- `reduce()`
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- `find()`
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- `some()`
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- `every()`
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## 任务
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请完成一个“学习成绩分析”脚本，要求：
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- 用 `map` 生成带单位的新数组
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- 用 `filter` 找出及格成绩
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- 用 `reduce` 计算总分
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- 用 `find` 找出第一条大于等于 90 的成绩
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- 用 `some` 判断是否有人不及格
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- 用 `every` 判断是否全部完成考试
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## 文件
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- [starter.js](/Users/lijiaqing/home/wwwroot/front-end-example/03-javascript-core/13-array-high-order-methods/starter.js)
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- [answer.js](/Users/lijiaqing/home/wwwroot/front-end-example/03-javascript-core/13-array-high-order-methods/answer.js)
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