Files
lancedb/nodejs
Yang CenandClaude Fable 5.1 872dfb2987 fix(node): wait for clock tick before cleanupOlderThan cutoff in test
The "cleanups old versions" test captured `new Date()` immediately after
the last commit in `beforeEach`. Lance records version timestamps with
nanosecond precision while a JS Date truncates to milliseconds, so when
the commit and the cutoff landed in the same millisecond the cutoff
compared as earlier than that version and only one old version was
pruned. On fast CI runners this failed roughly 1 in 8 runs.

Wait for the wall clock to advance to the next millisecond before
capturing the cutoff so it is strictly later than every prior commit.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-15 16:49:42 +08:00
..
2025-03-21 10:56:29 -07:00
2025-01-29 08:27:07 -08:00

LanceDB JavaScript SDK

A JavaScript library for LanceDB.

Installation

npm install @lancedb/lancedb

This will download the appropriate native library for your platform. We currently support:

  • Linux (x86_64 and aarch64 on glibc and musl)
  • MacOS (Intel and ARM/M1/M2)
  • Windows (x86_64 and aarch64)

Usage

Basic Example

import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect("data/sample-lancedb");
const table = await db.createTable("my_table", [
  { id: 1, vector: [0.1, 1.0], item: "foo", price: 10.0 },
  { id: 2, vector: [3.9, 0.5], item: "bar", price: 20.0 },
]);
const results = await table.vectorSearch([0.1, 0.3]).limit(20).toArray();
console.log(results);

The quickstart contains more complete examples.

Development

See CONTRIBUTING.md for information on how to contribute to LanceDB.