const uniqueArr = (arr) => arr.reduce((acc, current) => {
if(!acc.find(item => item === current)) {
return acc.concat(current)
}
return acc
}, [])
var a = [1,1,2,3,4]
uniqueArr(a) // [1, 2, 3, 4]
const uniqueArr = (arr) => arr.reduce((acc, current) => {
if(!acc.find(item => item === current)) {
return acc.concat(current)
}
return acc
}, [])
var a = [1,1,2,3,4]
uniqueArr(a) // [1, 2, 3, 4]
本文标题：去重
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