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A full list of JavaScript operators with examples

PouchDB
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Yjs
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A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.

Which is more popular?
Based on our record, Automerge seems to be a lot more popular than JavaScript Operator Lookup. While we know about 14 links to Automerge, we've tracked only 1 mention of JavaScript Operator Lookup.
Website, pricing, platforms and company facts side by side.
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| Website | joshwcomeau.com | automerge.org |
| Pricing | — | |
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What each product offers, as listed by its team.


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Possible disadvantages
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Automerge: a new foundation for collaboration software
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using JavaScript Operator Lookup and Automerge. 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
This is the same principle behind Automerge and Yjs, which is how collaborative editors let twelve people type into one paragraph without a central referee. - Source: dev.to / 9 days ago
This is apparently based on Automerge.[1] It sounds like a really good idea. Is it a good enough idea to sync MMO game clients and servers? Paper from 2012, last Automerge site update in 2025. Why isn't this everywhere? [1]... - Source: Hacker News / 2 months ago
Automerge (official) - Automerge project goals, JSON-like CRDT semantics, and cross-platform bindings. (automerge.org). - Source: dev.to / 4 months ago
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