Files
lancedb/nodejs
Xuanwo b4d1c55f62 test: isolate DynamoDB integration test databases (#4998)
The concurrent-append and drop-all DynamoDB tests shared a database
prefix. A timeout in the first could leave its table visible to the
second. Give each test its own prefix while retaining five independent
concurrent appends, the six-row assertion, and all drop/recreate checks.

The final two-prefix diff passed both tests in hosted LocalStack across
Node 22, 24, 26, and Node 24 experimental, without timing
instrumentation ([run
43245851764](https://github.com/lancedb/lancedb/actions/runs/43245851764),
head `5896c419`). Concurrency and the 5000 ms budget are unchanged. This
fixes cascading fixture contamination; the original timeout remains
unexplained, and these passing runs do not prove its root cause was
fixed.
2026-11-13 00:22:35 +08:00
..
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.