Array的方法 #
遍历foreach、reduce
- 转换map
- 扁平化flat
- 过滤filter
- 查找indexOf、includes、some、every、
- 排序sort
- 添加删除push、pop、shift、unshift
- 拼接join、concat
find findIndex indexOf includes some every map forEach includes适合比较基本类型,对象适合用some判断是否包含在数组中
遍历foreach、reduce
find findIndex indexOf includes some every map forEach includes适合比较基本类型,对象适合用some判断是否包含在数组中