Background and problems
Someone wrote a Web application that uses the ASP.net forms technology. It uses a DropDownList control, the user selects an item, the page will return, and then the next dynamic display another control, logic is very simple.
This article is an example of how JavaScript implements parsing INI file content. Share to everyone for your reference, specific as follows:
. INI is the abbreviation for initialization file, which is the initialization files, and the INI file
Look at the other data have extracted Cpu,mac ready-made code but no hard disk serial number, looking for a long time to find the parameters of the HDD serial number. So I made up for it.
extract HDD serial number
Find the code here:
For
ASSERT (Assert) is a good feature to ensure program correctness during the development and maintenance of JavaScript programs. On browsers with debugging tools, this feature can be implemented by calling Console.assert (). For example, in the
About the eight queens problem of JavaScript solution, always feel that it is necessary to learn the algorithm, which day to use when the discovery is really not embarrassed
BackgroundThe eight queen question is a chess-background question: How can
Recently using JavaScript programming, encountering the use of strings
Wrote a little bit of test code
var str = ' This is Jack ';
var str2 = "This is Tom";
var str3 = ' This is ' Rose ';
var STR4 = "This is ' LiLi '
Rotate the arrows as the mouse moves.Requestanimationframe
Before Requestanimationframe we can use the setinterval to implement the animation loop:
function Drawframe () { ball.x+=1; Ball.draw (context); } Window.setinterval
1.
2. Implementation analysis
Use canvas to draw the ball, the ground;1. Falling process
Physical knowledge Review, the object falling process (regardless of loss) converted from gravitational potential energy to kinetic energy
Gravitational
Objective
As we all know, JavaScript is a single-threaded language, although Web-worker is proposed in HTML5, this does not change the core of JavaScript as a single thread. You can see this paragraph in the HTML specification:
To coordinate
StabilizationAnti-shake shake to prevent hand shakeis to trigger multiple events within a certain period of time, and only the last one is executed.For example, Baidu Search Association, will only associate the last character enteredfunction
JavaScript Form ValidationJS ErrorIntroduction to DOMJavaScript can be used to validate these input data in an HTML form before the data is sent to the server.JavaScript Form ValidationJavaScript can be used to validate these input data in an HTML
Ajax, cross-domain, JSONPReference: JavaScript Advanced Programming Chapter 21st: AJAX operations in Ajax and Comet jquery
Usage and differences for apply and call:
Usage:Can inherit the methods and properties of another object, except
Introduction: Js2py Installation Library Now many Web sites have started to use JS encryption technology, so this library must be learned, or you will not be able to play with the tutorial js2py execute a single statement JS2PY executive function
Keywords: javascript Chinese character conversion to Unicode unicode encoding conversion to Chinese Character
Conversion of JavaScript Chinese Character unicode encodingCode.
Javascript Library -Javascript
VaR Gb2312unicodeconverter =
Http status code: 301, 302 redirection, 302 redirectionConcept
301 Moved Permanently the requested resource has been Permanently Moved to a new location, and in the future, any reference to this resource should use one of several Uris returned by
The html space symbol nbsp; ensp; emsp; introduces and implements Chinese alignment,I. Differences between spaces
& Nbsp; Blank box with half-width continuous rows (recommended)
& Ensp; halfwidth Space
& Amp; emsp; fullwidth Space
Description:
&
Simple JavaScript Lucky Draw code and js Lucky Draw
Core: js Math objects and Array objects
random Award List Award received Start drawing
Demo: http://demo.jb51.net/js/2015/choujiang/
Github:
In an ajax request, if the server-side response is 302 Found, can this status code be obtained in the ajax callback function? Can I get the Location value from Response Headers for redirection? Let's take a look at the actual situation.The
Recently, I am working on a task, but there is little information on the Internet. After several twists and turns, I finally got it done. The implementation process is very simple. Share it out so that you do not need to find it for a long time like
The server-side response is 302 Found. Can I get this status code in the ajax callback function? Can I get the Location value from ResponseHeaders for redirection? Let's write the code together to see the actual situation. In an ajax request, if the
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