使用Array.reduce数组去重
let arr = [1, 2, 3, 3]
let res = arr.reduce((prev, cur) => {
prev.indexOf(cur) == -1 && prev.push(cur)
return prev
}, [])
// [1, 2, 3]
let arr = [1, 2, 3, 3]
let res = arr.reduce((prev, cur) => {
prev.indexOf(cur) == -1 && prev.push(cur)
return prev
}, [])
// [1, 2, 3]