JS Get object, the actual length of the array, the actual number of elements to achieve code _JAVASCRIPT skills

JS gets the object, the actual length of the array, the actual number of elements of the implementation code

/* Get the object, the length of the array, the number of elements
   * @param obj to calculate the length of the element, can be object, array, string/
  function count (obj) {
    var objType = typeof obj;
    if (ObjType = = "string") {return
      obj.length;
    } else if (ObjType = = "Object") {
      var objlen = 0;
      for (var i in obj) {
        objlen++;
      }
      return objlen;
    }
    return false;
  }

This JS to get the object, the actual length of the array, the actual number of elements of the implementation code is small to share the whole of the content of everyone, hope to give you a reference, but also hope that we support the cloud habitat community.