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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 and find and fix bugs in multiple technologies.

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Free Sample Questions for JavaScript, Node.js, and SQL Test

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Config

3min
  -  
Easy  
  -  
MCA

Node.js NPM Public

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.

(Select all acceptable answers.)

Ensure

3min
  -  
Easy  
  -  
CODE

JavaScript Error handling 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 Select Public

Given the following data definition, write a query that returns the number of students whose first name is John. String comparisons should be case sensitive.

TABLE students
   id INTEGER PRIMARY KEY,
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL
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Premium Questions for JavaScript, Node.js, and SQL Test

TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.

Covered Skills

Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.

JavaScript Arrays Closures Exceptions DOM manipulation Event handling Language SQL Conditions Views Strings Monkey patching HTML5 Subqueries Update Node.js Modules Events Arithmetic Iteration Attribute manipulation Constraints Create table Database schema Select Create index Performance tuning Alter table Aggregation Dialog box Ordering Regex Bug fixing Left join Objects Asynchronous calls Indexes Union Group by Insert Joins Serialization XML JSON Sorting Content manipulation Styling Delete Callback Classes ECMAScript 2015 SQL CASE Recursion Asynchronous programming Forms Pagination Right join Database normalization CTE Async-await Promise Stream Algorithmic thinking Dictionary
Recommended Job Roles

These are the job roles that we recommend for the JavaScript, Node.js, and SQL online test.

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

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