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to say, this is a non-mainstream way of inheritance, basically only for the core object of inheritance, remember!Let's take a look at the Non-mainstream Succession II: Copy Inheritance method. As the name implies, copy inheritance, is through the copy to achieve the inheritance of objects, copy what? Obviously, is the object's properties and methods, remember JavaScript, the class is actually a hashtable? If you can't remember, go back and review th

DOCTYPE HTML>HTMLLang= "en">Head> MetaCharSet= "UTF-8"> title>Multiple H5 player Video how to play pausetitle>Head>Body> Videosrc= "Http://img.tianxiang.com/d/2018/06/5b1a45f89f96b.mp4"Controls= "Controls">Video> Videosrc= "Http://vodfile12.news.cn/data/cdn_transfer/1F/FE/1f74d72eedda3dc922b3487f49619c4730b4fbfe.mp4"Controls= "Controls">Video> Scripttype= "Text/javascript"> varVideos=d

. Separate the database configuration into one PHP. For example: db.php.1PHP2 /**3 * MySQL Database configuration4 */5 classDB {6 Private Static $sqlConfig=Array (7"Host" = "127.0.0.1",8"Port" =>3306,9"User" = "root",Ten"Password" = "root", One"Database" = "Jumpingbrick" A ); - - Public Static functionGetdb () { the return Newmysqli ( -Db::$sqlConfig["Host"], -Db::$sqlConfig["User"], -Db::$sqlConfig["Password"], +Db::$sqlConfig["Database"], -Db::$sqlConfig["Port"]); +

(): ' undefined ': ' null ';Ten}Else{ one return' Undefined '; a } - -}There is also a little trick for typeof to Use. When using typeof to detect a data type that does not have a "variable", it does not error, but returns Undefined.In the past, we tried to run the code with an indeterminate number by Try{}catch (e) {...}.finally, when reviewing Typeof's Information. By the way, I also briefly looked at the introduction of the next instanceof Operator.In general, the instanceof ope

I'm afraid few people don't know about fruit ninja. It is a very popular casual game on iOS, Android, and other mobile platforms. I have to say that it is a simple and interesting method of "Fruit Cutting", which has really benefited many people, both men and women, there are several people who like to cut down a few when bored ~ Although Fruit Ninja has not officially launched a web version, there are already many counterfeits on the Internet (mostly made by flash ). What we will introduce toda

; Param Name = "Playcount" Value = "99999999" /> // Whether to play the video automatically --> Param Name = "Autostart" Value = "-1" /> Param Name = "Autorewind" Value = "-1" /> Param Name = "Currentmarker" Value = "0" /> // Specify whether the URL router interface is enabled by the dynamic streamcompute. --> Param Name = "Invokeurls" Val

Content= "Width=device-width, User-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0" >below this is a static display, the specific function can be self-testUse JavaScript to toggle the image up and down and to play sequentially

Free to do nothing, spent two days, with JavaScript wrote a dozen peas game, as for how to play the do not elaborate, to search the internet to know, very simple. The following is the source code, published out for everyone to learn and exchange. Because this program does not use a picture, so the interface in IE under the beans are square more conspicuous, the proposed use of Chrome browser to run, or Fir

In "JavaScript Play Inheritance (i)", I mainly introduced object camouflage to implement inheritance. Let's start by talking about the pros and cons of this approach. There is no doubt that this approach is relatively easy to understand, calling the constructor of the parent class in subclasses. In addition, the biggest advantage of this method is that the construction of inheritance can achieve multiple i