babel-plugin-transform-node-env-inline-and-fold

babel-plugin-transform-node-env-inline-and-fold

A slightly modified fork of babel-plugin-transform-node-env-inline that entirely removes if-statements if the expression evaluates to false.

NOTE: this is not a proper GitHub fork as the git URLs for the original project no longer exist.

What follows is the original README for babel-plugin-transform-node-env-inline

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babel-plugin-transform-node-env-inline

Inline the NODE_ENV environment variable and if it's a part of a binary expression (eg. process.env.NODE_ENV === "development") then statically evaluate and replace it.

Example

In

process.env.NODE_ENV === "development";
process.env.NODE_ENV === "production";

Out

$ NODE_ENV=development babel in.js --plugins transform-node-env-inline

true;
false;

Installation

$ npm install babel-plugin-transform-node-env-inline

Usage

Via .babelrc (Recommended)

.babelrc

{
  "plugins": ["transform-node-env-inline"]
}

Via CLI

$ babel --plugins transform-node-env-inline script.js

Via Node API

require("babel-core").transform("code", {
  plugins: ["transform-node-env-inline"]
});