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A full list of JavaScript operators with examples

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Reconstruct what AI knew, did, and why at decision time

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 | lians.ai |
| Pricing | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
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No description of JavaScript Operator Lookup yet.
Lians is the system of record for AI in regulated workflows. It preserves exact source, prompt, policy, permission, model, and tool versions so teams can reconstruct what an AI system knew, did, and why at decision time, even after the underlying facts change. Built for financial research, risk,...
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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 Lians since Jul 2026.
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