Ajax

Recently, an internal project needs to be used.Organization chart(Organization chart), looking for some open-source projects and their class libraries, found that there is no ready-made JS class libraries available for use, find some simple JS

An error message was reported recently when ExtJS was used to build the webpage interface. The prompt in IE is as follows: Exception thrown and not caught, row 19 .... The Firefox prompt is as follows: Uncaught exception: No center region defined

In the last development, I encountered the problem of setTimeout parameter passing in IE. in IE, setTimeout does not pass in parameters. For example, the following code does not pass in a in IE, two Parameters of BSetTimeout (function (a, B ){Alert (

JavaScript uses indexOf to search for a string and return the position. Because the effect is relatively simple, the running function is no longer used for demonstration. You can test the function by copying the code to any HTML file. Copy to

// Check whether it is composed of digits Function isDigit (s){Var patrn =/^ [0-9] {1, 20} $ /;If (! Patrn.exe c (s) return falseReturn true} // Check Logon Name: You can enter only 5-20 strings starting with a letter, which can contain numbers, "_",

Today is a Google map api tutorial on using GControl and GLayer objects to display panoramio images on a map, yesterday I wrote a Google map api tutorial about adding a control button to a Map (Google map API Tutorial: adding a control button to a

I believe that every developer knows the importance of caching. Cache backend (such as memcached and xcache) from the beginning to the end .) To reduce the pressure on the database. You want your browser to cache more than once loaded Resources in

1. convert numbers to strings1.1 toString method (String Representation of the returned object)Var I = 012345;StrI = I. toString ();1.2 + ""Var I = 012345;StrI = I + "";2. convert a string to a number2.1parseInt (returns the integer part converted

Introduction In this article, we will discuss more details directly related to the execution context. The topic of the discussion is the this keyword. Practice has shown that this topic is difficult, and the determination of this value in different

In javascript, you can use = to compare whether the two data types are equal. If the two data types are different, the data will be compared after conversion. The conversion rules are as follows: L if the type of one of the operands is Boolean,

On the page, define the onresize event for the window object. When the window is scaled out, the onresize method is executed multiple times, affecting the page performance.I checked some information on the Internet, saying that in ie and opera, the

When js is used to specify a style or bind an event to an Html element, it is easy to bind the style or event to the parent element of the target element because the browser event is captured/bubbling, if you only want to bind a style or event to a

Javascript is characterized by dom processing and web page effects. In most cases, we only use the simplest functions of this language, such as making image carousel/Webpage tabs, this article will show you how to drag and drop your webpage. There

Almost graduated. I recently attended an interview. During the interview, the examiner asked me to complete an Ajax user management system including the front-end and back-end in an hour and a half, since I have been practicing using JavaScript to

Recently I read Dean's "Convert any color value to hex in MSIE" and finally solved the problem of obtaining color rgb values based on keywords. JavaScript color gradient and gradient effect color gradient change Demonstration:

I have been searching for code for a long time today, but I can't change the code one by one. Obviously, many people say it is feasible. Why can't I do it here. Finally, I found some comments in an English blog post. Because I do not understand

After consulting and confirming with the Google AdSense team, the tutorial of helping the customer House (www.bkjia.com) allows the webmaster to use js to call Google AdSense ads. The following describes how to call it: First, write a js file in

　　Tutorial on helping customers (www.bkjia.com)The BASE64 principle is very simple, but to write an efficient script, especially the highly flexible and low-efficiency script such as JS, you still need to consider it. Let's take a look at the

I. Solve the Problem of cross-origin access failure in firefox In essence, AJAX uses the XMLHttpRequest component to send HTTP requests to the server. Please receive the relevant information. The operation after the response information is

Because of work requirements, JSON objects must be converted into strings on the JS end and written to users' cookies to save users' personal operation habits. I searched the internet and found that there were many methods, some codes were not clear