yarn add babel-plugin-lf-debug -D

{
  "plugins": [
    ["babel-plugin-lf-debug", {
      "useDebug": true
    }]
  ]
}

console.log('before')
if(DEBUG){
  console.log('23')
  let a  = 2
  let b = 3
  console.log("a+b", a+b)
}

//src/.eslintrc.js
module.exports = {
  globals: {
    DEBUG: true,
  },
};