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ASP.NET jQuery Cookbook (Second Edition) - Second Edition
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Debugging is inevitable for resolving bugs in the code during the development phase. Sometimes, bugs also slip into production. Visual Studio provides support for developers to debug the JavaScript code in the same manner as the server-side code. However, there is a limitation and debugging in Visual Studio can only be done using the Internet Explorer browser at present.
web.config must be updated. To update the project properties, right-click on the project in the Solution Explorer tab, and select Properties. Go to the Web tab, and select the ASP.NET checkbox in the Debuggers section, as shown in the following screenshot:
web.config file, go to the configuration/system.web/compilation element. If the element does not exist, add a new node. To enable debugging, the debug property of the <compilation> node should be set to true, as follows:<compilation debug="true" … />
Debugging jQuery code in Visual Studio can be done by performing the following steps:



Make sure that you turn off debugging before launching the application in the production environment. An application that has debugging enabled has a slower performance since debugging generates additional information to enable the debugger to display the contents of variables. It also outputs more information to the call stack, which can become a security issue in the production environment.
The Hello World in a web project using jQuery recipe
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