ES6 数组和字符串

Posted 2020-10-29 圈地自萌

从url拿到的数组参数，变成字符串。。所以得处理下。。

比如现在有一个这样的字符串：

var a = "[1,3,2]"

先转成数组：

let b = [...a]
console.log(b) //["[", "1", ",", "3", ",", "2", "]"]

再过滤：

let c = b.reduce((arr, v)=>{
          (typeof Number(v)) === ‘number‘ && !isNaN(Number(v)) && arr.push(Number(v))
          return arr
        },[])
        console.log(c) // [1, 3, 2]