Property 'validate' does not exist on type 'Element | Element[] | Vue | Vue[]'. Property 'valid...

使用vue-cli 3.0+Element-ui时候，调用form表单校验时候出现的问题是：

Property 'validate' does not exist on type 'Element | Element[] | Vue | Vue[]'.   Property 'validate' does not exist on type 'Element'.

解决方案

(this.$refs.form as any).validate((valid: boolean) => {
    if (valid) {
    } else {
    }
});

博客看自：https://blog.csdn.net/weixin_34117522/article/details/86810945