# Developers guide

Install the dependencies

```bash
npm install
```

Build the typescript and package it for distribution

```bash
npm run build && npm run package
```

Run the tests

```bash
$ npm test

 PASS  ./index.test.js
  ✓ throws invalid number (3ms)
  ✓ wait 500 ms (504ms)
  ✓ test runs (95ms)

...
```