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2a65ba8c6a1e6ce0bae4222ef9f3f55419c630a2
front-end-example
/
05-es6-plus
/
02-spread-and-rest
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rou
1071f4db05
update
2026-03-23 14:56:04 +08:00
..
answer.html
feat: add TypeScript lessons and learning panel
2026-03-19 10:06:11 +08:00
answer.js
feat: add TypeScript lessons and learning panel
2026-03-19 10:06:11 +08:00
README.md
feat: add TypeScript lessons and learning panel
2026-03-19 10:06:11 +08:00
starter.html
feat: add TypeScript lessons and learning panel
2026-03-19 10:06:11 +08:00
starter.js
update
2026-03-23 14:56:04 +08:00
README.md
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练习 2
:
展开运算符和剩余参数
目标
学会复制数组、合并对象,以及用剩余参数接收不定数量的参数。
你要练什么
数组展开
对象展开
剩余参数
任务
复制一份课程数组并新增一项
基于用户对象生成一个更新后的对象
写一个
sumScores
函数,用剩余参数计算总分
文件
starter.html
starter.js
answer.html
answer.js