js 判断两个对象是否相同

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/ji519974770/article/details/80962607

isObjectEqual (a, b) {
    // 获取a、b的类型
    var classNameA = toString.call(a)
    var classNameB = toString.call(b)

    if (classNameA === '[object Object]' && classNameB === '[object Object]') {
      var propsA = Object.getOwnPropertyNames(a)
      var propsB = Object.getOwnPropertyNames(b)
      if (propsA.length !== propsB.length) {
        return false
      }
      for (let i = 0; i < propsA.length; i++) {
        var propName = propsA[i]
        if (a[propName] !== b[propName]) {
          return false
        }
      }
      return true
    }
}