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Ajax and REST Recipes: A Problem-Solution Approach by Christian Gross

By Christian Gross

Ajax and leisure Recipes: A Problem-Solution technique will serve your entire Ajax wishes, through offering adaptable recommendations for universal initiatives you need to enforce on websites utilizing the following iteration of Ajax and relaxation ideas. As a JavaScript developer, a while is necessary, so you’ll are looking to remedy difficulties that current themselves on your paintings as quick as attainable. you could choose up the code supplied during this ebook, adapt it, or plug it instantly into your individual purposes. The booklet in most cases specializes in illustrating and explaining the right way to construct functions that use JavaScript, Ajax, and relaxation internet companies, in addition to a few person interface concerns. in particular, the subsequent issues are coated: enforcing JavaScript unit checks, explaining the motive of dynamic languages, internet providers and service-oriented structure (SOA), defining and enforcing contracts utilizing leisure, figuring out why JavaScript capabilities have country; imposing JavaScript "Generics", that are a combination among actual Generics and a substitute set of rules, utilizing code blocks, utilizing capabilities to make judgements, knowing the variation of JavaScript code that behaves like a price sort or a reference sort, enforcing proxies, delegates, mixins, and overloaded features, imposing a whole Ajax and internet carrier structure, defining an internet carrier utilizing leisure, dealing with huge or sluggish or real-time info units, enforcing buying cart sort architectures, and fixing the again button challenge utilizing Ajax. Having learn this ebook, you might have discovered to modularize your net software through decoupling the customer from the server. The decoupling permits a shopper developer to target writing the easiest JavaScript and Ajax code, and a server developer to jot down the simplest enterprise and knowledge gadgets.

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You should remember the following points when creating contracts: • The Mock URL layer represents the definitive contract between the client and server. • The Mock URL layer implements the contracts using predefined files for requests and responses. • The Mock URL layer can only test targeted test cases and should not use any code that will be used in implementation, since the logic might have bugs. • When comparing the sent data with the data in the file, use a logical comparison and not a byte-to-byte comparison.

It only knows that if the request matches a file, then a response based on another file is sent. The Mock URL layer implementation is simple but can only deal with a single case of adding two specific numbers and generating a single response. In the Mock URL layer example, you perform multiple tests to see which test case is matched. If a test case is matched, then the appropriate response is sent. If no test cases matches, then no response is sent, and an error is generated. The method assertAreEqualJSONObject compares the JSON data that is sent to the JSON data in a file.

The Mock URL layer implementation is simple but can only deal with a single case of adding two specific numbers and generating a single response. In the Mock URL layer example, you perform multiple tests to see which test case is matched. If a test case is matched, then the appropriate response is sent. If no test cases matches, then no response is sent, and an error is generated. The method assertAreEqualJSONObject compares the JSON data that is sent to the JSON data in a file. Don’t be misled into believing that a byte-to-byte comparison is performed.

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