vue 調用 校驗空值、null、undefined、[] v-if 標簽內

校驗空值、null、undefined、[]

/**
 * @description: 校驗空值、null、undefined、[]
 * @param {*} val
 * @return {*}
 */
export function verification(val) {
  let valString = val + ""
  let verificationType = ["", "null", "undefined"]
  return verificationType.includes(valString)
}

vue 調用

屬性判斷：v-if="!verifications(val)"

標簽判斷：<diV>{{verifications(val)}}</div>


import { verification } from "@/utils/methods";

methods:
// 檢驗
verifications(key) {
  return verification(key)
}

方法內判斷調用：verification(val)