Var sUserAgent = navigator. userAgent;Var fAppVersion = parseFloat (navigator. appVersion );// Compare the browser version sizeFunction compareVersions (sVersion1, sVersion2 ){Var aVersion1 = sVersion1.split (".");Var aVersion2 = sVersion2.split (".");
If (aVersion1.length> aVersion2.length ){For (var I = 0; I AVersion2.push ("0 ");} Else if (aVersion1.length For (var I = 0; I AVersion1.push ("0 ");}
For (v
up to 10 m and dependent on devices)
3. Continuously track users' geographical locations
4. Interaction with Google Map or Baidu Map to present location information
Geolocation API is used to share the user's current geographic location information to a trusted site, which involves the user's privacy and security issues. Therefore, when a site needs to obtain the user's current geographic location, the browser will prompt "allow" or "deny ".
First, let's look at which browsers support the Geol
This article describes how to use JavaScript to obtain browser information and how to obtain browser addresses and parameters. For more information about browser information, see the navigator object in Window. we can use a series of API functions to learn browser information.
The JavaScript code is as follows:
Function message () {txt ="Browser code name: "+ navigator. appCodeName +""; Txt + ="Browser na
This article describes how to use JavaScript to obtain information icons of various browsers. For more information, see
How to obtain browser Information
Window has a navigator object to let us know all the information about the browser. We can use a series of API functions to know the information about the browser.
The JavaScript code is as follows:
The Code is as follows:
function message(){ txt = "
Browser code name: "+
Javascript: use JavaScript to detect browser-related features. Javascript tutorial
I. Check the browser nameProblem:Different browsers have different standard support for javascript. Sometimes you want the script to run well on different browsers. In this case, you need to check the browser and determine its name, write scripts for different browsers.Solution:Use the appName attribute of the navigator object.For example, to check whether the browser i
///Enable camera?///Microphone enabled or notVar api = navigator. getUserMedia = navigator. getUserMedia | navigator. webkitGetUserMedia | navigator. mozGetUserMedia | navigator. msGetUserMedia; if (! Api) return; var video = null; var audio = null; if (isEnableCamera) video
tableviewdatasource method.
The didselectobject method is used to process the selected event of an element in the list. Click any element here to open the Baidu page. The element ID is indexpath. row. The data type is integer.
# Import "moviecontroller. H "# import" menucontroller. M "# import" tableitem. H "# import" tableitemcell. H "# import" tableviewdatasource. H "@ implementation moviecontroller-(void) viewdidload {[Super viewdidload]; // The title bar content self. title = @ "Yu Song M
Detecting a browser is an important task in writing cross-browser js programs. From time to time, we need to write branch code for different browsers.The following is an example:Copy codeThe Code is as follows:// Add the event tool functionFunction addEvent (el, type, handle ){If (el. addEventListener) {// for standard browsesEl. addEventListener (type, handle, false );} Else if (el. attachEvent) {// for IEEl. attachEvent ("on" + event, handle );} Else {// otherEl ["on" + type] = handle;}
}1,The
){......;} Else {Window. location. href = '/';}}} But this does not work. The original ff 3 is changed to xmlHttp. onreadystatechange = xmlHandle (); however, with parentheses added, IE does not work. Alas, FF was originally regarded as a chicken skin. Now I feel that FF is purely named as a "standard support, it is a waste of time for programmers. However, this program is really important, and there is no way to debug it again to see if there is a simpler way, as shown below:Copy codeThe Code
; downloads)
Downloads-> components: you can download the SDK and simulator.
(5) Build the output directory(Preferences-> locations)
When default is selected, the Directory of derived data is ~ /Library/developer/xcode/deriveddata.
When relative is selected, the derived data directory is the directory where the current. xcodeproj is located.
When Derm is selected, the derived data directory must be customized.
We do not recommend that you use the absolute path. After writing, you must chang
Detecting a browser is an important task in writing cross-browser js programs. From time to time, we need to write branch code for different browsers.The following is an example:
Copy codeThe Code is as follows: // Add an event tool function
Function addEvent (el, type, handle ){
If (el. addEventListener) {// for standard browses
El. addEventListener (type, handle, false );
} Else if (el. attachEvent) {// for IE
El. attachEvent ("on" + event, handle );
} Else {// other
El ["on" + type] = handle;
Bridging mode is a structural design pattern.
Design intent: Separate the abstract and implementation parts so that they can be independently changed.
When you see the design intent, you may be a little confused, we see that the inheritance and interface are not both abstract and implementation of separation. In particular, interfaces and abstract classes are such implementations. Then why is there such a bridging separation?
Let's look at an example first.
For example: The car brand built-in
Today we will mainly talk about the creation and maintenance of DB2 parallel indexes. DB2 UDB for iSeries can use parallel processing to create SQL indexes and logical files marked with key values (that is, CRTLF command ). DB2 parallel indexing is mainly completed in the following ways:
Logically, the basic table is divided into multiple data segments, and each process creates an index key value for the specified table segment. Then, the tasks execut
For more information, see the following section. IBM's server product line is comprehensive, from entry-level servers to large servers. Because there are a lot of products, there are also a variety of product series classification standards. The following is a general analysis of the IBM series product classification standards.
The IBM eServer family currently has four product lines: iSeries, pSeries, xSeries, and zSeries ). These four series basical
to Heterogeneous Distributed Data, one of the features of the communication infrastructure above.Before discussing the details of such a solution in terms of unified access, distributed and heterogeneous features, we need to focus on the communication infrastructure. DB2 Connect provides this communication infrastructure as a communication server, which can be deployed on Windows®Linux (such as Linux for zSeries) and UNIX®Server. This communication server is built based on the same code used to
Connect provides unified access to Heterogeneous Distributed Data, one of the features of the communication infrastructure above.Before discussing the details of such a solution in terms of unified access, distributed and heterogeneous features, we need to focus on the communication infrastructure. DB2 Connect provides this communication infrastructure as a communication server, which can be deployed on Windows, Linux (such as Linux for zSeries), and UNIX servers. This communication server is b
The beginning of the wildfish framework1. What is the wildfish framework?This is a simplified data access framework based on. net2.0. It supports MSSQLServer Of course, I do not want to say that my framework is omnipotent. The selected database drivers support @ or: To represent parameters.Currently, only sqlserver'sCodeBecause of the lack of Oracle testing environment, Oracle has not started writing.Iseries code generators are available in companies, but they are not suitable for general purpos
functions of the above communication infrastructure, that is, how DB2 Connect provides a unified access to heterogeneous distributed data.
Before we discuss the specifics of this solution in terms of unified access, distribution, and heterogeneity, we need to turn our attention to the communications infrastructure itself. DB2 Connect provides this communication infrastructure in the form of a communications server that can be deployed on Windows®, Linux (for example, Linux for zSeries) and UNIX
----------ASCII If a zos or iseries person sends you a EBCDIC file and you don't have a chance to log in to Zos to run E2A, or login to iseries execute touch-c 819, then you can use PSPad to help you complete the transformation:Tools-> User convertors-> EBCDIC to ASCII (IBM mainframe)Bookmark----Bookmarks are very useful and therefore have to be mentioned. Set Bookmark: Ctrl + Shift + 0-9 digits. To bookmar
In the case of multi-threaded implementation, pthread_t is used as the abstract type and is specified as the whole line with a length of 4 as the thread ID.
In the thread implementation of some iseries servers, the thread ID is a 64-bit integer value and pthread_t is an abstract
The struct contains values and some other parameters. Abstraction allows a process to accommodate thousands of threads.
If transplantation is not allowed, processes are not a
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