By Henri Chen, Amy Cheng
• Use applicative programming suggestions with top quality capabilities
• know the way and why chances are you'll leverage variable scoping and closures
• Delve into higher-order functions—and learn the way they take different capabilities as arguments for max virtue
• discover how you can compose new features from current services
• decrease, conceal, or do away with the footprint of kingdom switch on your courses
• perform flow-based programming with chains and useful pipelines
• notice the way to code with no utilizing periods
- Mastering Web Application Development with Express
- Learning jQuery Deferreds: Taming Callback Hell with Deferreds and Promises
Component Garbage Collection Unlike many component-based GUIs, ZK has no destroy() or close() method for components. Like in the World Wide Web Consortium (W3C) DOM specification, a component is removed from the browser as soon as it is detached from the page. It is shown as soon as it is attached to the page. More precisely, once a component is detached from a page, it is no longer managed by ZK if the application does not keep any reference to it. The memory occupied by the component will be released by the Java Virtual Machine (JVM) garbage collector.
Learning by example is always the fastest way to understand a framework.
Listing 4-15. postEvent(new Event( . . )). ZUML and XML Namespaces Recall that ZUML is an XML-based language used to describe the visual representation of a page. ZUML divides off the dependency of the set of components to use. In other words, different types of components, such as XUL and XHTML, can be used simultaneously in the same ZUML page, and other markup languages can be added transparently. However, if two or more types of components are used in the same page; you have to use XML namespaces to distinguish them.