bQuery.js

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bQuery.jsThe jQuery for the modern Web Platform.

Zero build. Secure by default. DOM-first reactivity, transport, and modern primitives.

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Core API
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Zero Build

Works directly in the browser via CDN or ES modules. Vite is optional, not required.

Async Data Primitives

Signal-based async data, fetch, HTTP client, polling, pagination, and request-state workflows without framework ceremony.

Off-Main-Thread Concurrency

Zero-build worker tasks, explicit RPC helpers, bounded pools, reactive worker state, and collection helpers for predictable background work.

Realtime & REST

Typed WebSocket/SSE composables, channel multiplexing, REST helpers, optimistic resources, and reactive submissions.

Secure by Default

Sanitized DOM operations and Trusted Types compatibility.

Foundation Components

Register a default Web Component library, wire signals into components, and preview it in Storybook.

Storybook Helpers

Author safe stories with storyHtml(), when(), and boolean attribute shorthand.

Platform APIs

Storage, cache, cookies, page metadata, announcers, and shared runtime config.

Forms & i18n

Reactive forms, validators, locale-aware messages, pluralization, and Intl formatting.

Accessibility & media

Focus traps, skip links, audits, media preference signals, viewport/network state, and clipboard helpers.

Testing & SSR

Testing utilities, runtime devtools, and server-side rendering with hydration helpers.

Why bQuery ​

bQuery.js bridges vanilla JavaScript and build-step frameworks. It keeps the directness of jQuery while adding reactivity, async data composables, HTTP clients, polling, pagination, WebSocket/SSE transports, REST helpers, native components, motion, forms, i18n, accessibility, media signals, drag-and-drop, plugins, devtools, testing, and SSR in a modular, progressive way.

New in 1.10.0 ​

The concurrency module now covers explicit RPC workers, bounded task/RPC pools, opt-in reactive worker state mirrors, and high-level helpers such as parallel(), map(), filter(), reduce(), and pipeline() — all without giving up bQuery's browser-first, zero-build model.

New to bQuery? ​

Start with the Getting Started guide, then explore the Examples & Recipes for practical, copy-paste-ready code. Coming from jQuery? The Migration Guide maps jQuery patterns to bQuery equivalents.

Looking for answers? ​

Check the FAQ & Troubleshooting for common questions, or read the Best Practices guide for patterns that scale from small scripts to large applications.