NODE_ENV inline transform

示例

输入

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

输出

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

true;
false;

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

.babelrc

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

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

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