vue js数组、字符串互转
数组转字符串

var authority= ['1','2'];
let permission = authority.join(",");
console.log(permission )//1,2

字符串转数组
var a='1,2'
a.split(',')
console.log(a)// ["1", "2"]
数组转字符串

var authority= ['1','2'];
let permission = authority.join(",");
console.log(permission )//1,2

字符串转数组
var a='1,2'
a.split(',')
console.log(a)// ["1", "2"]