# trampa

> Trampolines, to emulate tail-recursion

Latest version **1.0.1** (published 2018-10-31) · MIT license · 0 weekly downloads

## Install

```sh
npm install trampa
pnpm add trampa
yarn add trampa
bun add trampa
```

## Health

**Score 15/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 1.0.1 |
| Published | 2018-10-31 |
| First published | 2015-07-14 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 0 |
| Unpacked size | 31.5 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 14 |
| Author | Oleg Grenrus |
| Maintainers | phadej |
| Keywords | trampoline, tail, recursion, tailcall |

## Links

- npm: https://www.npmjs.com/package/trampa
- Repository: https://github.com/phadej/trampa
- Homepage: https://github.com/phadej/trampa#readme
- Issues: https://github.com/phadej/trampa/issues
- npm.io page: https://npm.io/package/trampa

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## Recent versions

- 1.0.1 (latest) — 2018-10-31
- 1.0.0 — 2015-07-14

## README

# trampa

Trampolines, to emulate tail-call recursion.

[![Build Status](https://secure.travis-ci.org/phadej/trampa.svg?branch=master)](http://travis-ci.org/phadej/trampa)
[![NPM version](https://badge.fury.io/js/trampa.svg)](http://badge.fury.io/js/trampa)
[![Dependency Status](https://david-dm.org/phadej/trampa.svg)](https://david-dm.org/trampa/trampa)
[![devDependency Status](https://david-dm.org/phadej/trampa/dev-status.svg)](https://david-dm.org/trampa/trampa#info=devDependencies)
[![Code Climate](https://img.shields.io/codeclimate/github/phadej/trampa.svg)](https://codeclimate.com/github/phadej/trampa)

## Synopsis

```js
var trampa = require("trampa");

function loop(n, acc) {
  return n === 0 ? trampa.wrap(acc) : trampa.lazy(function () {
    return loop(n - 1, acc + 1);
  });
}

loop(123456789, 0).run(); // doesn't cause stack overflow!
```

## API

- `isTrampoline(t: obj): bool` — Returns, whether `t` is a trampolined object.

- `wrap(t: Trampoline a | a): Trampoline a` — Wrap `t` into trampoline, if it's not already one.

- `lazy(t : () -> Trampoline a | a)` — Wrap lazy computation into trampoline. Useful when constructing computations.

- `Trampoline.jump(f : a -> b | Trampoline b)` — *map* or *flatmap* trampoline computation. Like `.then` for promises.

- `Trampoline.run(): a` — Run the trampoline synchronously resulting a value.

## Changelog

- **1.0.0** — *2015-07-14* — Initial release

---
_Source: https://npm.io/package/trampa · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._