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A full list of JavaScript operators with examples

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Monitor every API call your AI Agent makes. Guardrly provides real-time alerts, visual audit logs, and PII scrubbing to prevent rogue actions from banning your Meta Ads or Shopify accounts. Know what your agent did before it's too late.

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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.
Website, pricing, platforms and company facts side by side.
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| Website | joshwcomeau.com | guardrly.com |
| Pricing | — | |
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The Safety Net for Your Autonomous AI Agents As AI Agents (like Claude Code, Cursor, or custom-built solutions) become more capable, developers are giving them access to critical external APIs—like Shopify, Meta Ads, and Stripe. But what happens when an agent hallucinates? A rogue AI can easily...
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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 Guardrly since Apr 2026.
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