this paper first introduces the basic principle of general distributed object applications with a routine, and then gradually introduces the methods of EJB programming from the basic download, installation and configuration, so as to make the learning of EJB easy and interesting. With more and more enterprises using J2EE platform to develop e-commerce application system, EJB development has become a problem that today's Java programmers must face. A significant difference between sun certified java programmer (scjp) and sun certified Java Developer (sCJD) is that scjp does not test EJB, but sCJD does. Introduction EJB (Enterprise JavaBeans) is a relatively advanced content in Java programming, and it is also a threshold for Java programmers to move from entry-level to expert level. Not recommended!Īrticle source: Silicon Valley Power Author: the mainstay 1. Using keywords and reserved words in Javascript results in an error. Note: let and yield are reserved for new words A reference reserved word is recommended to ensure compatibility. Implementspackagepublicinterfaceprivatestaticletprotectedyield Reserved words in non-strict mode in the fifth edition: Reserved words may be used as a key in the next release, such as the addition of the Debugger in the fifth release. Synchronizedfloatpackagethrowsconstgotoprivatetransientdebuggerimplementsprotectedvolatiledouble Provision: Keywords are language reserved and cannot be used for identifiers.Īll ECMAScript keywords (* new for 5th edition) :īreakdoinstanceoftypeofcaseelsenewvarcatchfinallyreturnvoidcontinueforswitchwhiledebugger * functionthiswithdefaultifthrowdeleteintryĪll reserved words in ECMA-262 (3rd edition) :Ībstractenumintshortbooleanexportinterfacestaticbyteextendslongsupercharfinalnativeclass That’s all for now and we will see more AngularJS features in the coming posts.Ecma-262 describes a set of keywords with a specific purpose, which can be used to indicate the beginning or end of a control statement, or to perform a specific operation, and so on. You will see the following output on your browser. In this example, we have replaced a div element without any content with meaningful div content. The template we pass in to the directive will replace the element with ng-transclude directive. The ng-transclude is a directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion. We have modified the above example to support transclusion simply by adding a transclude property to the myEmployee directive and it is set to true. You can see the use of these two features in the following example. The first one is a property that is used in directives named transclude and setting this to true enables the transclusion.The second is a directive named ng-transclude that is used to define where external content will be placed in a directive’s template. Transclusion in Directive ExampleĪngularJS provides two key features to support transclusion. We will see this in the following section using the above example. AngularJS provides tranclude property to support the transclusion in directive. The content inside my-employee directive is not displayed. You will see the following output in your browser. This will not be displayed Since the transclude property is not enabled. We have included an element inside the my-employee directive in index.html file. In the following example, we have created a directive called myEmployee that displays a template. Let us look at the below example to see what happens if we define a template inside the directive element. In the previous tutorials, we have used the template property to display the desirable templates. Transclusion provides a way to pass in templates to a directive and it is displayed. Transclusion means the inclusion of the content of one document in another document by reference (wikipedia). Earlier we looked at custom directives and in this tutorial, we will discuss about the transclusion in directives.
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