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A full list of JavaScript operators with examples

Photon Engine
Beamable
Authorative game server for turn based games that enforces turns, hides player data, and prevents cheating. Unity SDK but works on any engine. Leadeboards included.

Which is more popular?
Based on our record, JavaScript Operator Lookup seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | joshwcomeau.com | turnkit.dev |
| Pricing | — | |
| Platforms | — | |
| Listed in |
What each product offers, as listed by its team.


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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing JavaScript Operator Lookup and TurnKit.
TurnKit's answer:
Indie game devs and studios.
TurnKit's answer:
Basic relay just forwards messages. TurnKit Relay enforces turns, hides hands and has enforces voting result (end game, skip turn on illegal move as voted by clients).
TurnKit's answer:
Speeds up development overall, adds security over basic relay and skips infrastructure and headache of building your own server. It is specifically built for turn based games while competition targets any game.
TurnKit's answer:
I built many times as a freelancer multiplayer turn games for clients and it was taking too much time, but simple relays were too insecure and hacking even in unpopular games would break them fast. This was a solution I used to build games on top of and give clients faster results.
TurnKit's answer:
Its powered by modern Java 25 backend with Spring making it engine agnostic. Also provided is a Unity SDK and general docs for other engines to implement their own SDK.
TurnKit's answer:
We just launched, looking for devs to try it. Biggest customer are some of my games built for clients.
Share your experience with using JavaScript Operator Lookup and TurnKit. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


If you replace your || with ?? You should get the behaviour you are after. This is a good reference for what the operators do in js: https://joshwcomeau.com/operator-lookup. Source: about 5 years ago
Tracking TurnKit since Apr 2026.
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