字符串放到数组里面进行去重操作

Question

我得到的areas是字符串,然后我把他们放到数组里面,最后进行去重操作,得出的结果不对,请问怎么修改代码可去进行去重得到[4662,4663]

areas += choiceID[0].areas[i].id + ',';

console.log('areas is:', areas) // areas is: 4662,4663,4662,4663,

var arrAreas = []

arrAreas.push(areas)

console.log(arrAreas) // ["4662,4663,4662,4663,"]

var newAreas = [...new Set(arrAreas)]

console.log(newAreas) // ["4662,4663,4662,4663,"]

Answer 1

arrAreas.push(areas)改成[].push.apply(arrAreas,areas)试试

Answer 2

你数组里面是整个字符串？那怎么去重。分开就好了

Answer 3

你的数组没取对呢 是 ["4662", "4663", "4662", "4663"]  而不是 ["4662,4663,4662,4663"]var areas = '4662,4663,4662,4663'var arrAreas = areas.split(',') console.log(arrAreas)var newAreas = [...new Set(arrAreas)] console.log(newAreas)