请问 js 处理这个字符串，怎样写最简洁? - V2EX

请问 js 处理这个字符串，怎样写最简洁? - V2EX

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var value = '1,2,3,4,5,6,7,8,9' 输出[2, 5, 8]

输出索引匹配 i%3===1 的整形数组

2 条回复 2019-06-12 10:54:33 +08:00

1

cyd

2019-05-24 15:36:47 +08:00

value.split(",").filter((i,j)=>j%3===1)

2

bdbd001

2019-06-12 10:54:33 +08:00

value.split(",").map((i)=>i*1).filter((i)=>(i%3===2))

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