Mutual references between frames All frames in a page are provided as attributes of the window object in the form of a collection. For example: window.frames represents a collection of all frames in the page, which is similar to form objects, link objects
Important note: The web address you must fill in in src= must be on the same site as this page, otherwise, an error will occur and say "Access Denied!" I have encountered this problem before, so I went online to get the answer. After searching,
Use JS to judge 60 seconds to timing, first define a variable refreshTime. When triggering the event, check whether the time to success in the last request is more than 60 seconds. After the request is successful, assign the current time to RefreshTime,
I often see such examples: The copy code code is as follows: var a; var b=!!a; a default is undefined. !a is true, !!a is false, so the value of b is false, no longer undefined, nor other values, which mainly provides convenience for subsequent judgment.
The div remains at the top and the scroll bar scrolls, but the div is still at the top! Upload the source code directly: Method 1: Copy the code as follows:
To create a date object, you can use the following ways: Copy code code as follows: Var now = new date () Of course, no parameters are passed in the function, indicating that this object has automatically obtained the current time. If you want to create a
Referrer Importance There is a referer header in the HTTP request, which is used to indicate the source of the current traffic reference page. For example, click a link on www.sina.com.cn/sports/ to reach the homepage of CCTV.com, then referrer is www.sin
Copy code code as follows:<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title> Floating advertising code with a closed button
Most browsers today support the pointer style (move the mouse over the style name to observe that the pointer style is changed to that style): auto move no-drop col-resize all-scroll pointer not-allowed row-resize cross
In the previous article, I wrote a tool function $class, and this article will improve it as follows. Implement the following functions 1, inheritance 2. When a subclass inherits a parent class, it does not inherit the private properties of the parent cla
According to the official explanation of Baidu Maps, the following four events can be monitored on the mobile H5 page: touchstart, touchmove, touchend, longpress. If the click event is monitored on the map, the code in this event will not be executed on t
SessionStorage is a new session storage object for HTML5. It is used to temporarily save the same window (or tab) data. These data will be deleted after closing the window or tab. This article mainly introduces the use of sessionStoraages. Including addin
