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Summon The JSON: JavaScript Deck

Impressive Deck with an epic Game Mode





Have fun playing a card game and learn JavaScript!

STJ: JavaScript will help you learn to program while having fun at the same time

Why you should learn JavaScript?

JavaScript coder job is a great career choice. Here are some facts about this programming language:

  • JavaScript is the most popular programming language (source)
  • JavaScript is in TOP 3 languages required by companies (source)
  • The average salary of a JavaScript developer is $39,98 per hour (source)

Invest less than one hour of your future work into a deck that will help you boost your career!

Flashcards 2.0


If you are learning to code, it is often hard to discover and memorize all programming functions. STJ JavaScript flashcards make it super easy. It combines state of art memory techniques to help you remember functions fast.

The science behind STJ: JavaScript


According to research, images help stick the information in the long term memory, transmit messages faster, improve comprehension, trigger emotions, motivate learners. In fact, 90% of information transmitted to the brain is visual (source). We remember 80% of what we see, compared to 20% of what we read! (source). That is why STJ: JavaScript intriguing and beautiful illustrations can help you memorize faster. Side-by-side with the fantasy setting and funny descriptions STJ: JavaScript cards are a great combo to help boost your memory! They are eye-catching but also cause emotions - the cornerstone of fast memorization (source).

Quick test: do you remember how the first card from this page looks like? This is it!

Dive into a fantasy world of Summon THE JSON, where excellent visual design, creatures, and fun descriptions will help you remember JavaScript function automagically.


If it for you?

STJ: JavaScript is an excellent choice if you

Want to become a programmer

Flashcards contain the most useful set of JavaScript functions programmers use most of the time. STJ: JavaScript will give you a great overview of what tools every programmer has at hand. With that knowledge, it will be easier for you to start thinking about how to create your application from these building blocks.

Go to a coding job interview

A lot of companies use knowledge tests and whiteboard tasks to assess coding job candidate knowledge. STJ: JavaScript helps you remember functions easier. Regular flashcards are boring and make it hard to stick programming functions to anything meaningful. Contrary STJ: JavaScript helps your brain store information about JavaScript functions in an efficient way. It increases the chance, that during a job interview your brain will be able to give you all information you need.

Switch from another language to JavaScript

If you are already a software developer, you know how confusing it is to switch to learn another language. Some functions are similar. Some are not. It gets even worse when you code in 2 or 3 languages at the same time. There is a lot of things to remember in every language. You need to find equivalents. STJ: JavaScript will help you progress faster in learning JavaScript. It shows you the toolset of the language and helps you remember it faster. Also, if you come back to JavaScript, you can also take a look at cards, to recalibrate your brain easier.


Write faster without searching online

It is great, we have a lot of easily accessible sources on the Internet, we can find all information within seconds or minutes. But the Internet will never beat the human brain speed. If you remember function names, you will code faster. Moreover, your coding experience will become more fulfilling. You won't worry about connection lags, that the search engine does not give the answer you are looking for. You won't be distracted by websites and online ads. Focus is one of the most important assets of a programmer. STJ: JavaScript will help you be more focused in the zone!

A word from the creator

Hello Tom Smykowski. Why did you create STJ: JavaScript?
Tom Smykowski: I have 18-years experience of as a JavaScript coder, programming educator, and employer. I help everyday young people to become developers. One of my biggest accomplishments in that area is ranking TOP 3% of StackOverflow users for helping others. I run job interviews, code reviews. I see often young people struggle with getting a bigger picture of programming. We have today a lot of great learning sources. That is good but often leads to confusion and discouragement. So it became clear we all need something like a compass, an essentials toolkit. That is what STJ: JavaScript is. These are the tools you have at hand. Learning programming is easier if you have guidance on how to start"


STJ: JavaScript is a card game

Summon The JSON: JavaScript is not only a flashcard deck. It is also a game for everyone. Up to four people can play a game with STJ: JavaScript. The deck is divided into heroes, animals, and food. Some cards have points, some have super-powers. You can combine them to win battles against other players.

STJ: JavaScript game can be played by everyone. You don't need to have any prior programming knowledge to do so. In fact, it is a great way to spend time in a mixed group of geeks and non-geeks. You can play it with your family, friends, colleagues, or even meet new people

STJ: JavaScript game is a great ice-breaker, conversation starter, and a way to spend time with other people, chat, and bond. Have a great time together.

Watch gameplay:

What is inside?

One deck contains:

  • A complete deck of 65-cards with five custom cards included (make your own cards)
  • 8-page long booklet instruction with 2 memorization modes and game instruction

Cards are premium quality with linen texture and durable UV coating. The learning game takes approx 3 minutes. Each game takes about 15 minutes and can be repeated indefinitely.


Marcus Michaels on Instagram, 16 000 followers




Albina on Instagram, 1103 followers


@FrancescoCiull4 on Twitter, 24 400 followers


Cups, pencils, mouse pads and sweets are not included with the regular Summon The JSON: JavaScript deck

Photo gallery






The deck you will receive can slightly differ from the photos because of continuous improvement process we apply to products, to make sure you will receive the latest and best version of the deck. In case of any major changes we will ask you what version you like before shipping




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Average Rating 0 reviews
Publish Date December 13, 2019
Edition First
Department Games
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More Info Summon The JSON: JavaScript Deck web site

Why buy this?

  • Amazing illustrations
  • Epic card game
  • Brilliant idea for memorization


  • This game contains a premium upgrade called UV Coating that makes the printed components more durable.
  • This game contains a premium upgrade where the printed components will be embossed with a linen texture.


See It In Action

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Ratings and Reviews

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Own It Played It Fun Priced Well High Replay Value Well Written Rules Nice Artwork


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