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JavaScript advanced question list

1. What is the output? function sayHi() { console.log(name) console.log(age) var name = 'Lydia' let age = 21 } sayHi() A: Lydiaandundefined B: LydiaandReferenceError C: ReferenceErrorand21 D: undefinedandReferenceError Answer: D Inside the function, we first varkeyword to declare a namevariable. This means…

Tips for enabling WCF test client

There are two ways to open the WCF test client outside of Visual Studio: The first method is to double-click on the path to it (Visual Studio installation path \Common7\IDE\WcfTestClient.exe). The second method is to enter…

WCF study notes

Windows Communication Foundation (WCF) is the framework for building service-oriented applications. With WCF, data can be sent from one service endpoint to another as an asynchronous message. A service endpoint can be part of a continuously available…