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Q:

What is a data binding in AngularJS?

Answer

Data binding is an automatic synchronization of data between model and view components. ng-model directive is used in Data binding.

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Q:

What is a AngularJS?

Answer

AngularJS is a framework to build the large scale and high performance web application while keeping them as easy-to-maintain. These are the features of AngularJS framework.


AngularJS is a powerful Script based on JavaScript development framework to Implement RICH Internet Application (RIA).


AngularJS is a developers options to write client side application (using JavaScript) in a clean MVC (Model View Controller) side.


Application are written in AngularJS is also cross-browser compliant. AngularJS automatically handles JavaScript code suitable for any browser.


AngularJS is an open source, completely free, and used by large number of developers around the world. It is licensed under the Apache License version 2.0.

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Q:

What is the purpose of Buffer class in Node.js?

Answer

Buffer class could be a global class and may be accessed in application without importing buffer module. A Buffercould be a quite an array of integers and corresponds to a raw memory allocation outside the V8 heap. A Buffer can not be resized.

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Q:

How does Node.js prevents blocking code?

Answer

By providing callback function. Callback function gets called whenever corresponding event triggered.

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Q:

What is a REPL in context of Node.js?

Answer

Read - Reads users input, parse the input into JavaScript data-structure and stores in memory


Eval - Evaluates the data structure


Print - Prints the result


Loop - Loops the above command until user press ctrl-c twice

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