1. 检验数据是否为空

  1. const isEmpty = obj => {
  2.   if (obj === '' || obj === null || obj === undefined) {
  3.     return true
  4.   } else if (obj.constructor === Array && obj.length === 0) {
  5.     return true
  6.   } else if (obj.constructor === Object && Object.keys(obj).length === 0) {
  7.     return true
  8.   } else {
  9.     return false
  10.   }
  11. }

2. 检验手机号

  1. const phone = mobile => {
  2.   var tel = /^1[3|4|5|6|7|8|9]\d{9}$/
  3.   return tel.test(mobile)
  4. }


3. 判断两个对象是否相等

  1. function isObjectValueEqual(a, b) {
  2.   // 取对象a和b的属性名
  3.   let aProps = Object.getOwnPropertyNames(a)
  4.   let bProps = Object.getOwnPropertyNames(b)
  5.   // 判断属性名的length是否一致
  6.   if (aProps.length != bProps.length) {
  7.     return false
  8.   }
  9.   // 循环取出属性名，再判断属性值是否一致
  10.   for (var i = 0; i < aProps.length; i++) {
  11.     var propName = aProps[i]
  12.     if (a[propName] !== b[propName]) {
  13.       return false
  14.     }
  15.   }
  16.   return true
  17. }

4. 邮箱正则验证

  1. function checkEmail(value) {
  2.   const regEmail = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/;
  3.   return regEmail.test(value)
  4. }