highs.ts

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Node.js bindings for the HiGHS optimization solver

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# HiGHS for Node.js [![CI](https://github.com/opvious/highs.ts/actions/workflows/ci.yml/badge.svg)](https://github.com/opvious/highs.ts/actions/workflows/ci.yml) [![codecov](https://codecov.io/gh/opvious/highs.ts/branch/main/graph/badge.svg?token=yZatY8V1oT)](https://codecov.io/gh/opvious/highs.ts) [![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)

Native Node.js bindings for the [HiGHS optimization solver][highs].

```typescript
import * as highs from 'highs-solver';

// Solves an LP model, outputting regular progress updates (gap, ...).
const solution = await highs.solve('model.lp', {
  monitor: highs.solveMonitor().on('progress', console.log),
  options: {time_limit: 600, mip_rel_gap: 0.05},
  style: highs.SolutionStyle.PRETTY,
});
```

## Packages

The following packages are available:

+ [`highs-solver`](/packages/highs-solver), high-level idiomatic TypeScript API
+ [`highs-addon`](/packages/highs-addon), low-level API mirroring the underlying
  C++ solver's

## Related projects

+ https://github.com/lovasoa/highs-js, WebAssembly solver port. Both projects
  are complementary: `highs-js` runs in browsers and is well-suited for Web
  Workers; `highs-solver` provides non-blocking native performance on Node.js
  (~3x faster).
+ https://github.com/ERGO-Code/HiGHS, the underlying C++ HiGHS optimization
  solver which both this repository and `highs-js` bind to.

[highs]: https://github.com/ERGO-COde/HiGHS

## Development

This project uses [`pnpm`](https://pnpm.io/).

```sh
pnpm i # Install and build dependencies (see addon README for requirements)
pnpm dlx husky install # Set up linting git hooks, only needed once
pnpm t # Run tests
```

highs.ts

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