https://github.com/passcod/babel-plugin-transform-iota

Transforms iota() calls into ever-increasing literals.
https://github.com/passcod/babel-plugin-transform-iota

Last synced: about 1 month ago
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Transforms iota() calls into ever-increasing literals.

• Host: GitHub
• URL: https://github.com/passcod/babel-plugin-transform-iota
• Owner: passcod
• License: isc
• Archived: true
• Created: 2016-02-24T21:48:33.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2018-02-19T02:17:53.000Z (over 7 years ago)
• Last Synced: 2024-11-15T09:44:37.352Z (7 months ago)
• Language: JavaScript
• Homepage: http://npm.im/babel-plugin-transform-iota
• Size: 5.86 KB
• Stars: 4
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

Awesome Lists containing this project

• awesome-babel - transform-iota - Golang-style `iota()`. 🔧 (Plugins / Syntax Sugar)

README

        
# Babel transform: iota

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[![License: ISC](https://img.shields.io/badge/license-ISC-blue.svg?style=flat-square)](https://raw.githubusercontent.com/passcod/babel-plugin-transform-iota/master/LICENSE)

[![Travis CI Test Status](https://img.shields.io/travis/passcod/babel-plugin-transform-iota.svg?style=flat-square)](https://travis-ci.org/passcod/babel-plugin-transform-iota)

[![Code of Conduct](https://img.shields.io/badge/contributor-covenant-123456.svg?style=flat-square)](http://contributor-covenant.org/version/1/4/)

Transforms `iota()` calls into ever-increasing literals, à la [Go].

## Installation

```sh

$ npm install babel-plugin-transform-iota

```

## Usage

### Via `.babelrc` (Recommended)

**.babelrc**

```json

{

  "plugins": ["transform-iota"]

}

```

### Via CLI

```sh

$ babel --plugins transform-iota script.js

```

### Via Node API

```javascript

require("babel-core").transform("code", {

  plugins: ["transform-iota"]

});

```

## Synopsis

**Input**

```js

var foo = iota()

let bar = iota()

bar.baz = iota()

const qux = {

  a: iota(),

  [iota()]: 'b'

}

```

**Output**

```js

var foo = [1]

let bar = [2]

bar.baz = [3]

const qux = {

  a: [4],

  [[5]]: 'b'

}

```

(`[5]` coerces to `"5"`, which becomes a valid key. We cannot directly use

`"5"` as iota, because we want to support the case where we add properties to

an iota, and we can't do that on string literals.)

Also removes all functions named `iota()`, so you can still define them and

have a working implementation without Babel (and so your code lints without

`/* global iota */` overrides).  Here's a working example:

```js

function iota () {

  if (!this.i) { this.i = 0 }

  return [this.i += 1]

}

```

## About

Made by [Félix Saparelli](https://passcod.name).

Licensed under [ISC](https://spdx.org/licenses/ISC.html).

Inspired by [Go].

[Go]: https://github.com/golang/go/wiki/Iota