# Welcome

Funkcia is a TypeScript library that provides robust error handling and functional programming primitives, heavily inspired by Rust's error handling patterns and functional programming concepts.

It provides a comprehensive toolkit for writing more reliable code with better error handling and functional programming patterns, making it easier to write maintainable and type-safe applications.

{% tabs %}
{% tab title="npm" %}
{% code fullWidth="true" %}

```bash
npm i funkcia
```

{% endcode %}
{% endtab %}

{% tab title="pnpm" %}

```bash
pnpm add funkcia
```

{% endtab %}

{% tab title="bun" %}

```bash
bun add funkcia
```

{% endtab %}

{% tab title="yarn" %}

```bash
yarn add funkcia
```

{% endtab %}
{% endtabs %}

### Jump right in

<table data-card-size="large" data-view="cards" data-full-width="true"><thead><tr><th></th><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td>Option</td><td></td><td></td><td></td><td><a href="data-types/option">option</a></td></tr><tr><td>Result</td><td></td><td></td><td></td><td><a href="data-types/result">result</a></td></tr><tr><td>OptionAsync</td><td></td><td></td><td></td><td><a href="data-types/optionasync">optionasync</a></td></tr><tr><td>ResultAsync</td><td></td><td></td><td></td><td><a href="data-types/resultasync">resultasync</a></td></tr><tr><td>Brand</td><td></td><td></td><td></td><td><a href="modules/brand">brand</a></td></tr><tr><td>Pattern Matching</td><td></td><td></td><td></td><td><a href="modules/pattern-matching">pattern-matching</a></td></tr></tbody></table>

### Docs parity checklist

Before publishing docs updates:

* Verify public API names against source exports in `/packages/funkcia/src`.
* Ensure method headings match API casing exactly.
* Remove stale methods that no longer exist in source.
* Confirm `SUMMARY.md` links point to real files.
* Run a quick search for known removed APIs to avoid drift regressions.