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LikeDiscussCorrect / Improve  angular vs angular js  angular 1x vs angular 2x  angular vs angular 2  difference between angular and angular 2
Q2972. What is HMR or Hot Module Replacement in Angular ?
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LikeDiscussCorrect / Improve  interface vs abstraction  interfacing vs abstraction  relation between interface and abstraction  How interface provide abstraction Asked in 1 Companies
Ans. Choose the server from the list of defined servers under J2EE Server.
Choose the project to debug.
Click Apply to save changes.
Click Debug to start the server and run the application.
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Ans. TypeScript is used to Apply types to your JavaScript code, And it shows the error in IDE while writing code and make us to fix it to avoid any bug or issue before build and deployment, for example: you put //@ts-code at top of your js file, and it will show errors in file when u make common code mistakes.
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Ans. data under collection are actually stored in memory so that they can be retrieved when needed whereas data in streams are not stored and hence we need to construct it again when needed.
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Ans. 1. JVM that makes it platform independent and facilitates portability.
2. Garbage Collector that protects from Memory Leaks.
3. Only usage of references and not pointer arithmetic and hence protects the application from memory issues like dangling pointers, memory leaks etc.
4. Support for OOPs that makes application development and maintenance easy.
5. Facilitates library development through use of interface / abstract classes.
6. Facilitates creation of scalable applications.
7. Huge repository of libraries and pool of people with java skill.
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Ans. Struts controller uses the Command design pattern and the action classes use the Adapter design pattern. The process() method of the RequestProcessor uses the Template method design pattern.
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Ans. Yes, We need to have a component tied to a module for it to work. If we don't want to create a new module , we can just tie it to default "app.module"
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