Node.js Online Test
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Sign Up To Use This TestThe Node.js online test assesses candidates' knowledge of programming in the JavaScript language running on the Node.js environment and their ability to solve asynchronous problems.
It's an ideal test for pre-employment screening. A good Node.js developer needs to be able to solve problems using JavaScript and solve asynchronous problems using various programming patterns.
This online test requires candidates to solve coding problems in the Node.js environment and to find and fix bugs in a Node.js program.
Recommended Job Roles
Node.js Developer
Sample Candidate Report
Sample Free Questions
Config
3min
-
Easy
Easy
-
MCA
Node.js
NPM
Public
Node.js
Node.js is a cross-platform JavaScript runtime environment for developing a diverse variety of tools and applications. It is used primarily as the back end for web applications(including the MEAN stack).
NPM
npm is the default package manager for Node.js. As such, it is an important tool for every Node.js developer.
Public
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
Consider the following package.json for a Node.js application:
{
"name": "skill-measure-app",
"private": true,
"version": "1.0.0",
"main": "lib/main.js",
"scripts": {
"build": "npm run cleanup & npm run test & npm run publish",
"cleanup": "rm -fr ./lib",
"test": "jest",
"publish": "npm publish lib"
},
"dependencies": {
"jest": "^23.0.1",
"custom-package": "file:../custom-package"
}
}
Select all the correct statements.
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Http Server
5min
-
Easy
Easy
-
MCA
Node.js
Standard library
Public
Node.js
Node.js is a cross-platform JavaScript runtime environment for developing a diverse variety of tools and applications. It is used primarily as the back end for web applications(including the MEAN stack).
Standard library
Reusing a properly engineered and thoroughly tested standard library is the best way to keep your code concise, performant, and reliable.
Public
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
A company hosts its website and a product API on same server using the code below:
let http = require('http');
let commonResponse = function(response){
response.writeHead(200, { "Content-Type": "text/html" });
response.write("Request Complete");
}
let handleApi = function(req, res){
if(req.method == 'POST'){
commonResponse(res);
res.end();
}
}
let handleWeb = function(req, res){
commonResponse(res)
res.end();
}
http.createServer(handleApi).listen(4513);
http.createServer(handleWeb).listen(4514);
Select all the correct answers.
(Select all acceptable answers.)
Premium Questions
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Questions
Fahrenheit Converter, Shopping Cart, File Exists, Stream Transform, Run Sequentially, Retry Request, Weather DataSkills
Node.jsNode.js
Node.js is a cross-platform JavaScript runtime environment for developing a diverse variety of tools and applications. It is used primarily as the back end for web applications(including the MEAN stack).
Modules
In Node.js, modules are a way to package applications into multiple pieces. As such, it's important for every developer to know how they work.
Events
Events are the basic building block of Node.js. As such, they are important for all Node.js programmers.
JSON
JSON is an open-standard format that uses human-readable text to transmit data objects consisting of attribute-value pairs. It's the most common data format used for asynchronous browser/server communication.
Stream
A stream is a sequence of data elements made available over time. It is particularly useful for tasks that may benefit from being asynchronous, including tasks such as I/O processing or reading from a file, and as such is important for developers to understand.
Async-await
The async function declaration defines an asynchronous function, which can await a response. Using the async-await pattern allows using asynchronous code while not losing readability or maintainability.
Asynchronous programming
Asynchronous programming is a programming method used to to run tasks asynchronously. Running tasks asynchronously can improve performance and allow applications to feel more responsive. As such, it's important for all programmers who need to write performant or responsive applications.
Promise
In JavaScript, a Promise is an object representing the eventual completion or failure of an asynchronous operation. It allows associating handlers with an asynchronous action's eventual success value or failure reason. It is one of the commonly used asynchronous programming techniques in JavaScript.
Score Distribution
# of candidates
| 0-33% | |
|---|---|
| 34-66% | |
| 67-100% |
Score