Node.js is a super popular server-side platform that more and more organizations are using. If you are preparing for a career change and have an upcoming job interview, it’s always a good idea to prepare and brush up on your interview skills beforehand. Although there are a few commonly asked Node.js interview questions that pop up during all types of interviews, we also recommend that you prepare by focusing on exclusive questions to your specific industry.
If you're looking for Node.JS Interview Questions for Experienced or Beginners, you are at the right place. There are a lot of opportunities from many reputed companies in the world. According to research, Node.JS has a market share of about 2.6%. So, You still have the opportunity to move ahead in your career in Node.JS Development. Here are Nodejs interview questions that help you in cracking your interview & acquire a dream career as Node.JS Developer.
Node.js can be simply explained as it is a concept of two outcomes: runtime environment and JavaScript library. So basically, node.js will enable you to use javascript beyond the browser. It can make Javascript like 'go anywhere Javascript'.
Javascript operates in a runtime environment with the help of node js having its own package manager, this package manager is called NPM.
One of the vital reasons for Node.js getting popular is its 900000 packages connected to a large ecosystem. CLI is a command-line interface that will allow you to automate your tasks by taking advantage of this vast ecosystem. Not only that, by writing CLI you can differentiate your proposed packages among the ecosystem.
Node.js shows compatibility with three types of language
C
C++
Javascript
Ryan Dahl is the author of Node.js it was almost 13 years back when the javascript environment was introduced to the world. Initially, Node is was supported by Linux and Mac OS X but later it was sponsored by Joyent.
Javascript engine is used to run the java code in the browser so you can define a javascript engine as a computer program that is used to perform the java code. Initially, it was just used for interpretation and progressively it improved and got evolved. Generally, all browsers have one dealer and he is the one who develops the javascript engine.
Also Read: Tips to Prepare for Angular JS Interview
In 2008 when google chrome was launched time chrome also introduced its project of the V8 engine. It is an open-source network that can be written in the c++ language.
Ecmascript first appeared in 1997, which was specified and developed by Esma internationals. Evmascriot is also a programming language, which developed various other scripts like Jscript, ActionScript, and the most popularly used javascript.
For that, you need to install NPM which is a package manager. The second thing you will need is to have a node in your computer, you can check installed NPM and node by just typing simple commands. Now carry the following steps
Open the windows command prompt
Open command-line tool line Babun, Powershell, ConEmu, etc.
Type node-v which will display your current version of Node Js.
Modulus is various commands used in node js to perform tasks like addition, subtraction, division, multiplication, etc. Ins short you can do maths in js using modulus.
Arithmetic operations ( addition, subtraction, multiplication, division), exponentials, increment, and decrement are various common modulus in js.
Modulus is operated by two main managing modules
The Require module
The module module
Both of them are available on a global scope.
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The module. exports is a default application that can be found in every js file of Node js.
Node Js is single-threaded but it is non-blocking as well, it means that while operating node js various functions like callbacks is carried out in the background which is carried out using different threads or multiple threads.
I believe that these interview questions on NodeJs would help you understand what kind of questions may be asked to you in an interview, and by going through these Node.js interview questions, you can prepare and crack your next interview in one go.
Best of luck with your upcoming job interview!
If you have any kind of doubts regarding these questions, feel free to post them in the comments below, and our team will get back to you at the earliest.
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