This JavaScript and Node.js Online Test Separates Good From Bad Hires

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About the test

The JavaScript and Node.js online test assesses candidates' knowledge of JavaScript language and specific Node.js features.

It's an ideal test for pre-employment screening. A good Node.js developer needs to be able not only to solve problems using Node.js but also to be familiar with the Node.js ecosystem.

This online test requires candidates to solve coding problems in JavaScript and Node.js.

Sample public questions

Easy
3 min
code
Public
JavaScript
Error Handling
Language

Implement the ensure function so that it throws an error if called without arguments or the argument is undefined. Otherwise it should return the given value.

Easy
3 min
mca
Public
Node.js
NPM

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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61 more premium JavaScript and Node.js questions

Positive Numbers, Truthy Expressions, Fahrenheit Converter, Shopping Cart, Weather Data, File Exists, Retry Request, Run Sequentially, Max Sum, Launch Time, Stream Transform, Function Wrapper, Package Declaration, Add Id, Hash Bug, Game Action, Arrange Promises, Log Parser, Unique Numbers, Load URL, Photon Frequency, Color Codes, Tax Calculator, Confirm, Friend, Memory Game, Post Comment, Row Appender, Segment, Height, Product Rating, Validation, Cards, Array Search, Screen, Timer, Username, Snapshot, Scale Font Size, Products, Paragraph, Hide Button, A Tag, Hobbies, Loading Bar, Log Patch, Double, Table of Names, Filter, Reorder, Date Transform, Trading Data Paging, New Folder, Shipping, Chain Link, Node, Read Write Execute, Numbers To Text, Paper Strip, Vectors, Special Actions.

Skills and topics tested

  • JavaScript
  • Closures
  • Language
  • Node.js
  • Modules
  • Events
  • Asynchronous Programming
  • Async-Await
  • Promise
  • Algorithmic Thinking
  • Timing Events
  • JSON
  • Stream
  • Exceptions
  • NPM
  • Event Loop
  • Bug Fixing
  • Event Emitter
  • Serialization
  • XML
  • Dictionary
  • Ajax
  • HTTP
  • Arrays
  • Associative Arrays
  • Classes
  • Objects
  • Dialog Box
  • Event Handling
  • Graphs
  • Strings
  • Content Manipulation
  • DOM Manipulation
  • Arithmetic
  • Attribute Manipulation
  • Forms
  • Recursion
  • ECMAScript 2015
  • Asynchronous Calls
  • Callback
  • Regex
  • Styling
  • Sorting
  • Iteration
  • HTML5
  • Monkey Patching
  • Pagination
  • Linked List
  • Tree

For job roles

  • Back-End Developer
  • JavaScript Developer
  • Node.js Developer

Sample candidate report

What others say

Decorative quote

Simple, straight-forward technical testing

TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.

Jan Opperman, Grindrod Bank

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