Ajax

Resolves Ajax cross-domain issues: Origin xx is not allowed by Access-control-allow-origin.Today an AJAX cross-domain problem, tangled in my half-day, record it.HTML>Head> title>Titletitle> Scriptsrc=

In a single page application, it is sometimes necessary to get cookies, tokens and so on in the server, but Ajax does not acquire cookies and tokensThat's because Ajax is not designed to work that way.But we simulate sending HTTP requestsvarXHR =

The problem with a recent AJAX request data is that you want to request 3 different interfaces and then manipulate the data after the request is complete, the main problem is not knowing which of the 3 requests will come back first, or when the

JavaScript dynamically creates tags with AjaxA: IntroductionThe previous actions are for existing tags, and JavaScript can also dynamically create tags and generate new document combinations with existing markup. At the same time, it simply

I was learning about DRP, but I accidentally found that some of the documents attached had some benchmark books. One of them was about Ajax. I looked at it and it was quite good. So I decided to pause DRP and study Ajax again. I remember the first

1 // JavaScript document 2 function chkname (form) {3 var user = form. user. value; 4 If (user = '') {5 alert ('enter your username'); 6 form. user. focus (); 7 return false; 8} else {9 var url = "foundpwd. PHP? User = "+ User; 10 XMLHTTP. open

Generally, parameters submitted using Ajax are simple strings. You can directly use the get method to write the parameters to be submitted to the URL parameters of the open method, the parameter of the send method is null. For example: VaR url =

In Jquery, there are several ajax Forms Submission methods (get and post), and jqueryajax In jquery, ajax submits forms in the post and get modes. When using the get method, we can directly use ajax to serialize the form $ (Form ID) serialize, the

In IE9, Ajax cannot refresh the data cache. Solution: ie9ajax Use jQuery's getJSON to regularly retrieve data from the background and refresh the interface. When using the following methods, there is no problem in Chrome or Firefox, but the data

Before reading this article, specify a common variable xhr and xhr code ajax object. Test Browser: ie is ie6, firefox is 2, and others are not tested. Ie6 is Internet Explorer and firefox2 is ff.The most classic problem is the cache problem in

As long as we use js settimeout and div to combine the countdown, we can achieve the display time per second. Below we have sorted out an example used in our work and shared it with you. The countdown function is used in many previous activity pages.

In js, the most common numeric data is used for comparison. However, if I directly perform normal comparison, problems may occur, next, I will introduce some considerations when comparing the size. Use js to obtain the values of the two numeric

In js, there are many ways to use this. The following describes the common usage of this in js, anyone who needs to know how to use this will not be able to refer to it. Let's take a look at what this points to in the following situations: 1. In the

The _ FILE _ constant like PHP does not exist in javascript files for us to obtain the path of the current FILE. After research, we can use the following methods: 1. Get the current JS file path in jQuery It is relatively simple to obtain the path

Speaking of the namespace, I think many of my friends know that php has a namespace and asp.net has a namespace. We will talk about the namespace of JavaScript. I will introduce it to you below. When writing JavaScript in C or JAVA, people who are

Both substr and substring are JS string truncation functions. The two functions are similar in usage, but they are different in many places. Next I will summarize the usage and differences between substr and substring. The syntax of the two is as

Window. opener opens a new window in js. Next I will introduce some usage and summary of window. opener to you. I used to think that window. opener can be accessed only when window. open is opened. I didn't expect that even the page opened by a link

This article introduces how to solve the conflict between function $ (id) and jquery in js. If you have encountered such problems, refer. $ (Id) is js document. the abbreviation of getElementById (id) defines the $ ("img-icon") that can be directly

Sharp jQuery Reading Notes --- Ajax in jQuery -- load method, jquery --- jquery The first Ajax example Content of test. jsp: Ajax in jQuery 1. load () The load () method is the most simple and commonly used Ajax method in jQuery. It can

1. WebService. asmx Process business data and generate weather data in the GetWhether Method for JqueryRequest. aspx to call. The Code is as follows:[System. Web. Script. Services. ScriptService]Public class WebService: System. Web. Services.