JavaScript, Node.js, and SQL Online Test

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The JavaScript, Node.js, and SQL online test assesses candidates' knowledge of programming in the JavaScript language, specific Node.js features, and their ability to use SQL.

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 write and analyze SQL queries to access a database.

This online test requires candidates to solve coding problems in JavaScript, to answer multiple-choice and fill in the blanks questions about Node.js, and to write SQL queries that extract, combine, and manipulate data.

Recommended Job Roles
Back-End Developer
JavaScript Developer
Node.js Developer
SQL Developer
Sample Candidate Report

Sample Free Questions

Config

3min
  -  
Easy 
  -  
MCA

Node.js NPM Public New

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.

(multiple correct answers possible)

Ensure

3min
  -  
Easy  
  -  
CODE

JavaScript Language Public

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.

Students

3min
  -  
Easy  
  -  
CODE

SQL Aggregation Public

Given the following data definition, write a query that returns the number of students whose first name is John.

TABLE students
   id INTEGER PRIMARY KEY,
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL
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Questions
Filter, Stopwatch, Movies, Index Performance, Poll, Rectangles, Height, Positive Numbers, Retirees, Authors, Countries, Employee Manager, Merge Stock Index, Paragraph, Post Comment, Row Appender, Validation, Hobbies, Cheapest Product, Vectors, Username, Function Wrapper, Anchors, Confirm, Movies Live, Double, Reorder, Hide Button, Truthy Expressions, Array Search, ATM Locations, Autocomplete, Department Report, Developers, Ingredients, Loading Bar, Delete Orders, Product Rating, Products, Restaurant Menu, Roads, Sales, Snapshot, Student Activities, Table of Names, Transactions, Word Count, Projects, Log Parser, Date Transform, Cards, Youngest Child, SMS Messages, Scale Font Size, Bank Branches, Hospital Patients, New Folder, Screen, Log Patch, Ban Users, Menu Items, Segment, Shopping Cart, Read Files, Weather Data, Fahrenheit Converter, Tasks
Skills
JavaScript Arrays Closures SQL Aggregation Subqueries Indexes Conditions Arithmetic Language Insertion Joins Union Strings DOM manipulation Event handling Iteration Searching Exceptions Recursion Constraints Database Schema Performance tuning Bug fixing Update HTML5 Delete Serialization Sorting Views Styling Classes ECMAScript 2015 Monkey Patching Node.js Events Asynchronous Programming Modules
Score Distribution
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