https://github.com/kentcdodds/preval.macro

Pre-evaluate code at build-time with babel-macros
https://github.com/kentcdodds/preval.macro

Last synced: about 1 month ago
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Pre-evaluate code at build-time with babel-macros

• Host: GitHub
• URL: https://github.com/kentcdodds/preval.macro
• Owner: kentcdodds
• Created: 2017-07-14T16:13:53.000Z (almost 7 years ago)
• Default Branch: main
• Last Pushed: 2021-01-25T23:16:47.000Z (over 3 years ago)
• Last Synced: 2024-01-24T12:22:25.309Z (4 months ago)
• Language: JavaScript
• Homepage: https://npm.im/preval.macro
• Size: 18.6 KB
• Stars: 126
• Watchers: 3
• Forks: 6
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

Lists

• awesome-javascript - Pre-evaluate code at buildtime - Pre-evaluate your front end javascript code at build-time (QA Tools / Runner)
• awesome-babel-macros - `preval.macro` - evaluate code<span id="backlink-1" />[¹](#footnote-1) (Macros / Code generation)
• awesome-javascript-cn - Pre-evaluate code at buildtime
• awesome-stars - kentcdodds/preval.macro - Pre-evaluate code at build-time with babel-macros (JavaScript)
• awesome-javascript - Pre-evaluate code at buildtime - Pre-evaluate your front end javascript code at build-time (QA Tools / Runner)
• awesome-javascript-builds-project - Pre-evaluate code at buildtime - Pre-evaluate your front end javascript code at build-time (QA Tools / Runner)
• A-collection-of-awesome-browser-side-JavaScript-libraries-resources-and-shiny-things. - Pre-evaluate code at buildtime - Pre-evaluate your front end javascript code at build-time (QA Tools / Runner)
• awesome-javascript - Pre-evaluate code at buildtime
• awesome-javascript - Pre-evaluate code at buildtime - Pre-evaluate code at build-time with babel-macros ` 📝 a year ago ` (QA Tools [🔝](#readme))

README

        
# preval.macro

This is a [`babel-plugin-macros`][babel-plugin-macros] macro for

[`babel-plugin-preval`][babel-plugin-preval].

Please see those projects for more information.

## Installation

This module is distributed via [npm][npm] which is bundled with [node][node] and

should be installed as one of your project's `devDependencies`:

```

npm install --save-dev preval.macro

```

You'll also need to install and configure

[`babel-plugin-macros`][babel-plugin-macros] if you haven't already.

## Usage

Once you've

[configured `babel-plugin-macros`](https://github.com/kentcdodds/babel-plugin-macros/blob/master/other/docs/user.md)

you can import/require `preval.macro`. For example:

```js

import preval from 'preval.macro'

const one = preval`module.exports = 1 + 2 - 1 - 1`

```

**Note**:

[`babel-plugin-preval`][babel-plugin-preval] allows you to have a few more APIs

than you have with this macro, but this macro comes with all the benefits of

using [`babel-plugin-macros`][babel-plugin-macros] (which you can read about in

the `babel-plugin-macros` docs).

[npm]: https://www.npmjs.com

[node]: https://nodejs.org

[babel-plugin-macros]: https://github.com/kentcdodds/babel-plugin-macros

[babel-plugin-preval]: https://github.com/kentcdodds/babel-plugin-preval