vue3+ts 中Type XXX is not assignable to type ‘never‘.

记录：在使用vue3+ts开发过程中遇到Type XXX is not assignable to type 'never'的问题

解决办法1：参数ele设置为any

((ele:any, idx:number) => {
    if(index === idx) {
         = true
    }
})

解决办法2：声明断言，强制执行

([index] as any)['isSelect'] = !isSelect