This JavaScript and SQL Online Test Separates Good From Bad Hires

Check our public questions below

Solve questions to get feedback or
take a practice test and get a free certificate.

Screen with work-sample questions

Work-samples are the best predictor of work performance. 8,000+ companies use TestDome premium questions.

About the test

The JavaScript and SQL online test assesses candidates' knowledge of programming in the JavaScript language as well as their ability to use SQL.

It's an ideal test for pre-employment screening. A good JavaScript developer needs to not only solve problems using JavaScript but also write and analyze SQL queries used for communication with the database.

This online test requires candidates to solve coding problems in JavaScript and to write SQL queries that extract, combine, and manipulate data.

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
code
Public
SQL
Aggregation
Select

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

For jobseekers: get certified

Earn a free certificate by achieving top 25% on the JavaScript and SQL test with public questions.

Take a Certification Test

Sample silver certificate

Sunshine Caprio

Java and SQL

TestDome
Certificate

TestDome logo on certificate

For companies: premium questions

Buy TestDome to access premium questions that can't be practiced.
Get money back if you find any premium question answered online.

Sign Up to Offer this Test

89 more premium JavaScript and SQL questions

Positive Numbers, Truthy Expressions, Max Sum, Launch Time, Function Wrapper, Log Parser, Unique Numbers, Load URL, Photon Frequency, Color Codes, Tax Calculator, Confirm, Friend, Roads, Authors, Autocomplete, Bank Branches, Cheapest Product, Countries, Developers, Hospital Patients, Index Performance, Menu Items, Movies, Projects, Rectangles, Restaurant Menu, Retirees, SMS Messages, Poll, Users and Accounts, Matching Clothes, Agents, Sales, Employee Manager, Auto Show, Delete Orders, Welfare Organization, Tasks, Manager Sales, Student Rankings, Student Activities, Youngest Child, Movies Live, Department Report, Ingredients, Average Salary, Movie Genres, Memory Game, River Discharge, ATM Locations, 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, Transactions, Reorder, Merge Stock Index, Date Transform, Ban Users, 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
  • Algorithmic Thinking
  • Timing Events
  • Exceptions
  • Serialization
  • XML
  • Dictionary
  • Ajax
  • HTTP
  • Promise
  • Arrays
  • Associative Arrays
  • Classes
  • Objects
  • Dialog Box
  • Event Handling
  • Graphs
  • SQL
  • Conditions
  • Views
  • Select
  • Create Index
  • Database Schema
  • Performance Tuning
  • Constraints
  • Create Table
  • Aggregation
  • Subqueries
  • Ordering
  • Bug Fixing
  • Indexes
  • Alter Table
  • Group by
  • Update
  • Insert
  • Joins
  • Left Join
  • Right Join
  • Delete
  • SQL CASE
  • Union
  • CTE
  • Strings
  • Database Normalization
  • Content Manipulation
  • DOM Manipulation
  • Arithmetic
  • Attribute Manipulation
  • Forms
  • Recursion
  • ECMAScript 2015
  • Asynchronous Calls
  • Callback
  • Regex
  • Styling
  • JSON
  • Sorting
  • Iteration
  • HTML5
  • Monkey Patching
  • Pagination
  • Linked List
  • Tree

For job roles

  • JavaScript Developer
  • SQL Developer
  • Web Developer
  • Web Front-End 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

Product reviews

G2 High Performer 2022G2 Read Our Reviews

Used by

Solve all your skill testing needs

150+ Pre-made tests

From web development and database administration to project management and customer support. See all pre-made tests.

90+ skills

From JavaScript and SQL to English and customer support. See all questions to filter by skill.

Multi-skills Test

Mix questions for different skills or even custom questions in one test. See an example.

How TestDome works

1

Choose a pre-made test
or create a custom test

2

Invite candidates via
email, URL, or your ATS

3

Candidates take
a test remotely

4

Sort candidates and
get individual reports

Want to know more?

Not exactly what you're looking for?

Related JavaScript and SQL Programming Tests: