Have you ever thing what are basic questions for Node js Developer. Here we have written an article in which you find best 10 common interview questions on Node js that are asked frequently in IT industry,
1. Using the event loop what are the tasks that should be done asynchronously?
1. Using the event loop what are the tasks that should be done asynchronously?
a) I/O operations
b) Heavy computation
c) Anything requiring blocking
2. Why node.js is quickly gaining attention from JAVA programmers?
Node.js is quickly gaining attention as it is a loop based server for JavaScript. Node.js gives user the ability to write the JavaScript on the server, which has access to things like HTTP stack, file I/O, TCP and databases.
3. What are the two arguments that async.queue takes?
The two arguments that async.queue takes
a) Task function
b) Concurrency value
4. What is an event loop in Node.js ?
To process and handle external events and to convert them into callback invocations an event loop is used. So, at I/O calls, node.js can switch from one request to another .
5. Mention the steps by which you can async in Node.js?
By following steps you can async Node.js
a) First class functions
b) Function composition
c) Callback Counters
d) Event loops
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