babel-plugin-minify-replace

babel-plugin-minify-replace

Configurable "search and replace" plugin. Replaces matching nodes in the tree with a given replacement node. For example you can replace process.NODE_ENV with "production".

Example

Options

[
  {
    identifierName: "__DEV__",
    replacement: {
      type: "numericLiteral",
      value: 0,
    },
  },
]

In

if (!__DEV__) {
  foo();
}
if (a.__DEV__) {
  foo();
}

Out

if (!0) {
  foo();
}
if (a.__DEV__) {
  foo();
}

Installation

npm install babel-plugin-minify-replace

Usage

Via .babelrc (Recommended)

.babelrc

// without options
{
  "plugins": ["minify-replace"]
}

// with options
{
  "plugins": [
    ["minify-replace", {
      "replacements": [{
        "identifierName": "__DEV__",
        "replacement": {
          "type": "booleanLiteral",
          "value": true
        }
      }]
    }]
  ]
}

Via CLI

babel --plugins minify-replace script.js

Via Node API

require("babel-core").transform("code", {
  plugins: ["minify-replace"]
});

Similar packages

Other packages similar to babel-plugin-minify-replace

babel-plugin-transform-inline-environment-variables

This package is used to inline environment variables into your code. It is similar to babel-plugin-minify-replace in that it allows for the replacement of specific expressions, but it is specifically focused on environment variables. It does not offer the same level of flexibility for replacing arbitrary identifiers or expressions.

babel-plugin-transform-define

babel-plugin-transform-define allows you to replace identifiers with static values, similar to babel-plugin-minify-replace. However, it is more focused on defining constants and is less flexible in terms of replacing complex expressions or member expressions.