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@ -50,7 +50,7 @@ The `load()` function is compatible with
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if your vectors are represented as an array of numbers, wrap it in a
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[`Float32Array`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float32Array),
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and use
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and use the
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[`.buffer`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/buffer)
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accessor to bind as a parameter to `sqlite-vec` SQL functions.
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@ -62,8 +62,32 @@ console.log(stmt.run(embedding.buffer)); // 4
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## Node.js
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Here's a quick recipe of using `sqlite-vec` with
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[`better-sqlite3`](https://github.com/WiseLibs/better-sqlite3) in Node.js.
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If you're on Node.js `23.5.0` or above, you can use [the builtin `node:sqlite` module](https://nodejs.org/api/sqlite.html) with `sqlite-vec` like so:
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```js
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import { DatabaseSync } from "node:sqlite";
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import * as sqliteVec from "sqlite-vec";
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const db = new DatabaseSync(":memory:", { allowExtension: true });
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sqliteVec.load(db);
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const embedding = new Float32Array([0.1, 0.2, 0.3, 0.4]);
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const { result } = db
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.prepare("select vec_length(?) as result")
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.get(new Uint8Array(embedding.buffer));
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console.log(result); // 4
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```
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See
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[`simple-node2/demo.mjs`](https://github.com/asg017/sqlite-vec/blob/main/examples/simple-node2/demo.mjs)
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for a complete `node:sqlite` + `sqlite-vec` demo.
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Alternatively, you can use the
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[`better-sqlite3`](https://github.com/WiseLibs/better-sqlite3)
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NPM package with `sqlite-vec` in Node as well.
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```js
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import * as sqliteVec from "sqlite-vec";
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@ -83,7 +107,7 @@ console.log(result); // 4
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See
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[`simple-node/demo.mjs`](https://github.com/asg017/sqlite-vec/blob/main/examples/simple-node/demo.mjs)
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for a more complete Node.js demo.
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for a more complete demo.
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## Deno
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@ -91,13 +115,11 @@ Here's a quick recipe of using `sqlite-vec` with
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[`jsr:@db/sqlite`](https://jsr.io/@db/sqlite) in Deno. It will only work on Deno
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version `1.44` or greater, because of a bug in previous Deno versions.
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Keep in mind, the `better-sqlite3` example above also works in Deno, you just
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need to prefix the `better-sqlite3` import with `npm:`, like
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`import * from "npm:better-sqlite3"`.
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```ts
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import { Database } from "jsr:@db/sqlite@0.11";
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import * as sqliteVec from "npm:sqlite-vec@0.0.1-alpha.9";
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import { Database } from "jsr:@db/sqlite";
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import * as sqliteVec from "npm:sqlite-vec";
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const db = new Database(":memory:");
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db.enableLoadExtension = true;
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@ -115,11 +137,17 @@ See
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[`simple-deno/demo.ts`](https://github.com/asg017/sqlite-vec/blob/main/examples/simple-deno/demo.ts)
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for a more complete Deno demo.
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The `better-sqlite3` example above also works in Deno, when the `better-sqlite3` import is prefixed with `npm:`:
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```js
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import * from "better-sqlite3"; // [!code --]
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import * from "npm:better-sqlite3"; // [!code ++]
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```
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## Bun
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Here's a quick recipe of using `sqlite-vec` with
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[`bun:sqlite`](https://bun.sh/docs/api/sqlite) in Bun. The `better-sqlite3`
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example above also works with Bun.
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[`bun:sqlite`](https://bun.sh/docs/api/sqlite) in Bun.
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```ts
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import { Database } from "bun:sqlite";
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@ -143,3 +171,6 @@ console.log(result); // 4
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See
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[`simple-bun/demo.ts`](https://github.com/asg017/sqlite-vec/blob/main/examples/simple-bun/demo.ts)
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for a more complete Bun demo.
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The `better-sqlite3`
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example above also works with Bun.
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@ -40,7 +40,7 @@ for a more complete Python demo.
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If your vectors in Python are provided as a list of floats, you can
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convert them into the compact BLOB format that `sqlite-vec` uses with
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`serialize_float32()`. This will internally call [`struct.pack()`](https://docs.python.org/3/library/struct.html#struct.pack).
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`serialize_float32()`. This internally calls [`struct.pack()`](https://docs.python.org/3/library/struct.html#struct.pack).
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```python
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from sqlite_vec import serialize_float32
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