
JavaScript.com
JavaScript Quiz
Learn JavaScript
JavaScript Knowledge Map
Do you speak JavaScript?
50 Tips on JavaScript
dateDropper Javascript
A full list of JavaScript operators with examples

Trademarkia
Markify
LaunchTime IP
TMScope
PatrolMark
TMchecks
Brand Monitor
We help you search, apply for and file your trademark online

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 | trademarkengine.com |
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What each product offers, as listed by its team.


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Trademark Engine Review: Cheap Trademark Filing or Hidden Scam? (2026)
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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 Trademark Engine since Mar 2021.
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