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A full list of JavaScript operators with examples

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Connect your AI agent to the world: web search, X, Reddit, YouTube, on-chain data — through one MCP install for Claude Code, Cursor and Windsurf. Pay-as-you-go.

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Based on our record, JavaScript Operator Lookup seems to be more popular. It has been mentioned 1 time since March 2021.
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| Website | joshwcomeau.com | agentkey.app |
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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 AgentKey since May 2026.
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