javascript unset property

Processing cookies in JavaScript is complicated because of its well-known interface, namely the doucmentcookie attribute of BOM. This attribute is unique in that it will show different behaviors in different ways. When used to obtain the property

Important knowledge points of PHP object-oriented (2 ). 1. _ toString: when an object is printed, if this method is defined by this class, the return value of this method is printed; otherwise, the result is printed based on the default PHP behavior.

1. _ toString: when an object is printed, if this method is defined by this class, the return value of this method is printed; otherwise, the result is printed based on the default PHP behavior. This method is similar to toString () in Java (). Copy

The delete operator deletes an attribute from an object or an element from an array. Today, when reading prototype code, we found the delete operator. The Code is as follows: Unset: function (key ){Var value = this. _ object [key];Delete this. _

19th Chapter Client Storage 1.cookie ① was originally used by the client to store session information. 1.1 Limit ①cookie are bound to a specific domain name in nature. This cookie is included when a cookie is set and a request is sent to the domain

1. __tostring: When the object is printed, if the class defines the method, the return value of the method is printed, otherwise the print result is printed according to the default behavior of PHP. This method is similar to ToString () in Java.

1. What is the definition of a variable? How do I check that a variable is defined? How do I delete a variable? How do I detect if a variable is set? $ defines whether the isset ()//check variable is setDefined ()//Detect constants are setUnset

Connecting to a database Mongoclient VS Connection Class Mongoclient (pymongo.common.BaseObject) | Connection to MongoDB. | | Method Resolution Order: | Mongoclient | Pymongo.common.BaseObject | __builtin__.object | Class

This article describes the PHP array passed to JavaScript and Json_encode GBK Chinese garbled solution, the following is the creation of JSON function, this section from the online one of the heroes The code is as follows Copy Code

Connecting to a database Mongoclient VS Connection Class Mongoclient (Pymongo.common.BaseObject) | Connection to MongoDB. | | Method Resolution Order: | mongoclient | Pymongo.common.BaseObject | __builtin__.object |class Connection