# @oliver-schoendorn/babel-plugin-transform-define > This babel plugin will take a set of config values (or load them from a file path) and replace all occurrences in the parsed scripts. Latest version **2.0.0** (published 2019-11-28) · MIT license · 0 weekly downloads ## Install ```sh npm install @oliver-schoendorn/babel-plugin-transform-define pnpm add @oliver-schoendorn/babel-plugin-transform-define yarn add @oliver-schoendorn/babel-plugin-transform-define bun add @oliver-schoendorn/babel-plugin-transform-define ``` ## 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 | 2.0.0 | | Published | 2019-11-28 | | First published | 2019-02-25 | | Weekly downloads | 0 | | License | MIT | | TypeScript types | none | | Module format | CommonJS | | Dependencies | 0 | | Unpacked size | 13.1 KB | | Known vulnerabilities | 0 | | Install scripts | no | | GitHub stars | 0 | | Author | Oliver Schöndorn | | Maintainers | cyanide235 | | Keywords | babel, plugin, define | ## Links - npm: https://www.npmjs.com/package/@oliver-schoendorn/babel-plugin-transform-define - Repository: https://github.com/oliver-schoendorn/babel-plugin-transform-define - Homepage: https://github.com/oliver-schoendorn/babel-plugin-transform-define#readme - Issues: https://github.com/oliver-schoendorn/babel-plugin-transform-define/issues - npm.io page: https://npm.io/package/@oliver-schoendorn/babel-plugin-transform-define ## Alternatives - [@openai/codex-sdk](https://npm.io/package/@openai/codex-sdk.md) — 731.4K weekly downloads - [babel-plugin-transform-react-jsx](https://npm.io/package/babel-plugin-transform-react-jsx.md) — 565.0K weekly downloads - [babel-helper-remove-or-void](https://npm.io/package/babel-helper-remove-or-void.md) — 508.5K weekly downloads - [@pnpm/store-controller-types](https://npm.io/package/@pnpm/store-controller-types.md) — 186.9K weekly downloads - [react-native-signature-canvas](https://npm.io/package/react-native-signature-canvas.md) — 155.6K weekly downloads ## Recent versions - 2.0.0 (latest) — 2019-11-28 - 1.0.1 — 2019-02-25 - 1.0.0 — 2019-02-25 ## README # babel-plugin-transform-define [![Build Status](https://travis-ci.com/oliver-schoendorn/babel-plugin-transform-define.svg?branch=master)](https://travis-ci.com/oliver-schoendorn/babel-plugin-transform-define) [![Coverage Status](https://coveralls.io/repos/github/oliver-schoendorn/babel-plugin-transform-define/badge.svg?branch=master)](https://coveralls.io/github/oliver-schoendorn/babel-plugin-transform-define?branch=master) This [Babel](https://babeljs.io/) plugin will take a set of config values (or load them from a file path) and replace all occurrences in the parsed scripts. This plugin is compatible with [Babel](https://babeljs.io/) 7. Other [Babel](https://babeljs.io/) versions have not been tested. `npm i -D @oliver-schoendorn/babel-plugin-transform-define` ### Configuration example (.babelrc, static config) ```json { "plugins": [ [ "@oliver-schoendorn/babel-plugin-transform-define", { "values": { "your": "values" } } ] ] } ``` ### Configuration example (.babelrc, config from file) ```json { "plugins": [ [ "@oliver-schoendorn/babel-plugin-transform-define", { "file": "./src/config" } ] ] } ``` ## Examples All of the following example will use these plugin config values: ```json { "values": { "process.env.NODE_ENV": "production", "isProduction": true, "CONFIG": { "API_HOST": "https://your.domain/" }, "VAR": null, "TEST_STUFF": "/^foo$/igm", "didRTFM": true } } ``` ### Variable declarations Input ```ecmascript 6 const initState = { initialized: true } const appState = { global: { ...CONFIG, isProduction }, ...initialized } const thisWorks = asWell = isProduction const VAR = { CONFIG } ``` Output ```ecmascript 6 const initState = { initialized: true } const appState = { global: { ...{ "API_HOST": "https://your.domain" } }, ...initialized } const thisWorks = asWell = true const VAR = { CONFIG: { "API_HOST": "https://your.domain" } } ``` ### Assignments and calls Input ```ecmascript 6 const myObject = {}, isProduction = false myObject.foo = VAR myObject.isProduction = isProduction new RegExp(TEST_STUFF) Object.keys(CONFIG).map(key => console.log(key)) ``` Output ```ecmascript 6 const myObject = {}, isProduction = false myObject.foo = null myObject.isProduction = isProduction new RegExp("/^foo$/igm") Object.keys({ "API_HOST": "https://your.domain" }).map(key => console.log(key)) ``` ### Exports Input ```ecmascript 6 export { CONFIG } export default isProduction ``` Output ```ecmascript 6 const CONFIG = { "API_HOST": "https://your.domain" } export { CONFIG } const isProduction = true export default isProduction ``` ### Conditionals evaluation Input ```ecmascript 6 if (isProduction) { doThings() } else { doSomthingElse() } if (! isProduction) { whatEver() } else { sorcery() } const youAre = didRTFM ? 'awesome' : 'lazy' const complicated = didRTFM && ! isProduction const canNotEvaluate = didRTFM && require('./aScript') ``` Output ```ecmascript 6 { doThings() } { sorcery() } const youAre = 'awesome' const complicated = false const canNotEvaluate = true && require('./aScript') ``` ## Options | Option key | Description | Type | Default value | |---------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|----------------| | **values** | Object with keys and values, that should be replaced.
**Please note that only the top level keys will be used for replacement.**

If you want to define `process.env.NODE_ENV` for instance,
use `{ "process.env.NODE_ENV": "production" }` | `object` | `{}` | | **file** | Instead of passing an object, you can also reference a file.
The given path has to be relative to your babel config and
should use `module.exports = { API_HOST: "https://..." }` | `string` | `undefined` | | **memberExpressions** | You can disable the processing of member expressions (`node.env.NODE_ENV`). | `boolean` | `true` | | **exportExpressions** | Toggles the processing of export expressions (`export { MY_CONFIG }` or `export default MY_CONFIG`). **Note:** If you enable this option, you will have to set the babel parser option `allowUndeclaredExports` to `true`. | `boolean` | `true` | | **evaluateConditionals** | Toggles the evaluation and simplification of If Statements, Unary Statements and so on. | `boolean` | `true` | | **verbose** | If set to true, some information about the replaced nodes and their types will be printed to the console. | `boolean` | `false` | --- _Source: https://npm.io/package/@oliver-schoendorn/babel-plugin-transform-define · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._