bs-typeahead - GitLite

KO | EN

gitlite — search

#python #ai #go #android #machine-learning #deep-learning #linux #docker #macos #windows #cli #vue #mcp #open-source

bs-typeahead

(★ 169)

Bootstrap Ajax Typeahead Plugin

File Explorer

Download Latest Version (.zip)

- - ci.yml
  - publish.yml
- - package.json
  - styles.css
  - tsconfig.json
  - tsup.config.ts
  - vitest.config.ts
- - index.html
  - package.json
  - tsconfig.json
  - vite.config.ts
- - package.json
  - tsconfig.json
  - tsup.config.ts
  - vitest.config.ts
.editorconfig
.gitignore
.prettierrc
eslint.config.js
LICENSE
package.json
pnpm-lock.yaml
pnpm-workspace.yaml
README.md
tsconfig.base.json

# Installation Guide

1. Get the code

git clone https://github.com/biggora/bs-typeahead

Downloads the entire project code from GitHub to your computer.

cd bs-typeahead

Moves into the project folder you just downloaded.

2. Node.js

Easy Recommended

Prerequisites

Git Needed to download the project code from GitHub.
Node.js Node.js must be installed to use npm. The LTS version is recommended.

pnpm install

Downloads and installs the libraries listed in package.json.

pnpm dev # opens the playground at http://localhost:5173

Starts the development/run server.

pnpm test # vitest run (across packages)

Type this command into your terminal and run it.

pnpm typecheck

Type this command into your terminal and run it.

pnpm lint

Type this command into your terminal and run it.

✅ After running the command, open the address shown in the terminal (usually something like http://localhost:3000) in your browser.

Pulled directly from this repo's README.

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

# bs-typeahead

A framework-agnostic typeahead/autocomplete for Bootstrap 5.3, with a thin React wrapper.

The original `bootstrap-ajax-typeahead` was a jQuery plugin written against Bootstrap 2 and Grunt 0.4. This is a complete rewrite — TypeScript, ESM, WAI-ARIA combobox pattern, `@floating-ui/dom` positioning, AbortController-aware async sources, and a React 19 wrapper that survives StrictMode without leaks.

## Repository layout

This is a pnpm workspace with three packages:

| Package | Purpose |
|---|---|
| [`@bs-typeahead/core`](./packages/core) | The vanilla TS class. No framework dependencies; only `@floating-ui/dom` at runtime. |
| [`@bs-typeahead/react`](./packages/react) | Tiny React 19 wrapper — `<Typeahead />` component and `useTypeahead` hook. |
| [`@bs-typeahead/playground`](./packages/playground) | Vite playground with 10 live scenarios (8 ported from the original demo + a React showcase + an a11y inspector). |

The core has no dependency on React; the React wrapper has no logic of its own — it forwards every prop into the core's imperative API. This split is what makes any other framework wrapper (Vue, Solid, Svelte) a one-day job.

## Vanilla quick start

```ts
import { Typeahead } from '@bs-typeahead/core';
import '@bs-typeahead/core/styles.css';
// You also need Bootstrap 5.3's CSS for .dropdown-menu / .dropdown-item.

const input = document.querySelector<HTMLInputElement>('#search')!;

const ta = new Typeahead<{ id: number; name: string }>(input, {
  source: [
    { id: 1, name: 'Toronto' },
    { id: 2, name: 'Montreal' },
  ],
  displayField: 'name',
  valueField: 'id',
});

ta.on('select', (e) => console.log(e.detail.item, e.detail.value));
```

## React quick start

```tsx
import { Typeahead } from '@bs-typeahead/react';

<Typeahead<City>
  source={cities}
  displayField="name"
  valueField="id"
  placeholder="Search..."
  className="form-control"
  onSelect={(detail) => console.log(detail.item)}
/>
```

Async source:

```tsx
<Typeahead<City>
  source={async (query, signal) => {
    const res = await fetch(`/api/cities?q=${encodeURIComponent(query)}`, { signal });
    return res.json();
  }}
  displayField="name"
  debounceMs={250}
  minLength={2}
/>
```

A headless hook is available when you need direct access to the core's state:

```tsx
const { inputRef, items, isOpen, select } = useTypeahead<City>({
  source: cities,
  displayField: 'name',
});
return <input ref={inputRef} />;
```

## Options

All options live on `TypeaheadOptions<T>` exported from `@bs-typeahead/core`. The most useful ones:

| Option | Type | Default | Purpose |
|---|---|---|---|
| `source` | `T[] \| (query, signal) => Promise<T[]>` | — | Local array or async fetcher. |
| `displayField` | `keyof T \| (item) => string` | `'name'` | Field shown in the menu and matched against. |
| `valueField` | `keyof T` | `'id'` | Field returned in the `select` event. |
| `minLength` | `number` | `1` | Minimum query length to trigger a lookup. |
| `debounceMs` | `number` | `300` | Debounce window for async sources. |
| `maxItems` | `number` | `10` | Cap on rendered options. |
| `maxHeight` | `number \| string` | — | Apply `max-height` + scroll on the menu. |
| `autoSelect` | `boolean` | `true` | Highlight the first option so `Enter` commits it. |
| `highlight` | `boolean` | `true` | Wrap query matches in `<mark>`. |
| `matchWidth` | `boolean` | `true` | Resize the menu to the input's width. |
| `placement` | `Placement` | `'bottom-start'` | Floating UI placement. |
| `renderItem` | `(item, ctx) => HTMLElement` | — | Custom option renderer. |
| `renderEmpty` | `(query) => HTMLElement \| null` | — | Empty-state renderer; return `null` to hide the menu. |
| `classNames` | `Partial<ClassNamesConfig>` | Bootstrap 5 | Override `menu` / `item` / `active` / `shown` class names. |
| `matcher` | `(item, query, display) => boolean` | substring | Custom predicate for local sources. |

## Events

Subscribe via `ta.on(name, handler)` (returns an unsubscribe function) or the standard `addEventListener` API:

| Name | Detail |
|---|---|
| `query` | `{ query: string }` — emitted on every `setQuery`. |
| `load` | `{ items: T[]; query: string }` — emitted after a lookup resolves. |
| `select` | `{ item: T; value: unknown; index: number }` — emitted when the user commits an option. |
| `open` / `close` | no payload — menu visibility changes. |
| `error` | `{ error: unknown }` — async fetcher rejection. |

## Migrating from 0.0.5

The old jQuery plugin is gone. The closest mapping:

| Old | New |
|---|---|
| `$el.typeahead({ source: [...] })` | `new Typeahead(el, { source: [...] })` |
| `ajax: '/url'` | `source: async (q, signal) => (await fetch('/url?q=' + q, { signal })).json()` |
| `ajax: { url, method, preDispatch, preProcess }` | The fetcher is your own function — build the request however you like. |
| `triggerLength` | `minLength` |
| `items` (the cap) | `maxItems` |
| `alignWidth` | `matchWidth` |
| `scrollBar: true` | `maxItems: 100, maxHeight: 220` |
| `onSelect: fn` | `ta.on('select', fn)` or React `onSelect` prop |
| `loadingClass` | `[data-loading="true"]` attribute on the input + your CSS |
| `data-provide="typeahead"` auto-init | Removed — incompatible with React StrictMode and SSR. |

## Development

```bash
pnpm install
pnpm dev          # opens the playground at http://localhost:5173
pnpm test         # vitest run (across packages)
pnpm typecheck
pnpm lint
pnpm build        # tsup for core/react
```

See [`CLAUDE.md`](./CLAUDE.md) for the architectural overview Claude Code uses.

## License

MIT © Twitter Inc., Paul Warelis, Alexey Gordeyev. See [`LICENSE`](./LICENSE).