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here s no compiler to catch errors! There s no good IDE with productivity tools such as code completion! There s no good debugging environment! These are just a sampling of the myriad of excuses people have for avoiding JavaScript development Ever since the browser wars of the late 1990s, JavaScript has had a reputation as being an error-prone, difficult development language This reputation is based largely on the early, bugged-riddled versions of JavaScript that ran in the early, bugged-riddled editions of Netscape Navigator and Internet Explorer To make matters worse, JavaScript was often written by nonprogrammers who got JavaScript to work by trying everything until something seemed to work Freely available scripts were also available on the Web, and many of these scripts were rather poor quality, further perpetuating JavaScript s reputation as a substandard programming environment.

The Web service issues a secured response using the security context token The security context token can be used like any standard security token It inherits from the same base classes, and its usage is no different from the security tokens you learned how to work with in 6 Security context tokens may be cached in a global cache for future retrieval, for example, when the client will be issuing multiple requests over a period of time Programmingwise, WSE 30 makes it very easy to implement a service token provider because the WSE infrastructure will automatically issue security context tokens This feature is enabled by simply adding a configuration element to the service token provider s configuration file The STS provider can be incorporated into the client s target Web service, or the STS provider can be implemented as a dedicated Web service.

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At the core of Drupal is the concept of the node and content type A node is a single piece of content, while a content type is a grouping of nodes A single blog entry, for example, is a node that belongs to the blog content type, while an informational About Us page is a node that belongs to the page content type A node has several pieces of information attached to it; some pieces you provide when you create a node (such as the title and full text), and some are generated automatically (such as the date created and node ID) You can create a menu link to a node, add a custom URL path to access the node, allow web site visitors to comment on a node, or save a revision every time you edit a node.

There s a lot more you can do, but I m just talking about the basics right now A node belongs to only one content type, allowing you to customize the default behaviors of groups of nodes Each content type has its own set of default settings, such as comment settings, publishing options, URL path settings, and more You can also add fields to content types, such as drop-down lists, check boxes, and image uploads Think of it this way: a static web page has two fields, title and body, while a blog post may have two additional fields, an image upload field and a field to tag the post with blog categories Both of these content types have unique sets of fields, permissions, and settings, yet both live within the same web site.

Today s JavaScript implementations are vastly superior to those found just a few years ago Thanks to JavaScript syntax and behavior being standardized by the ECMA, a stable JavaScript version, and better implementation by Web browsers, programming in JavaScript is a much more enjoyable endeavor In addition, tools such as full-fledged debugging environments, Ajax-specific debugging tools, and JavaScript error consoles provide developers with many more development tool options Some of the issues still remain; for example, at the time of this writing, no useful JavaScript IDE, which offers productivity tools such as code completion, exists In addition, JavaScript is still often written by those who have no background in programming However, more tools are available today that greatly reduce the amount of pain associated with JavaScript development and, by extension, Ajax development.

There is little difference in the code between a hosted service token provider (that resides in the client s target Web service) and a dedicated service token provider (that resides on a separate domain) There are some significant configuration and deployment differences between the two models, but codewise they are very similar..

Furthermore, each content type can have its own template, allowing you to customize the way each content type is displayed A Drupal site can have an unlimited number of content types (for example, blog, web page, forum, products, portfolio, and so on) with an unlimited number of nodes for each content type If you re logged into wwwFoundationDrupal7com, click the Add content button in the administration toolbar to see the two default content types provided by Drupal See Figure 1-1 for details..

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