babel-plugin-undeclared-variables-check
Throw a compile-time error on references to undeclared variables
Installation
$ npm install babel-plugin-undeclared-variables-check
Usage
Via .babelrc (Recommended)
.babelrc
{
"plugins": ["undeclared-variables-check"]
}
Via CLI
$ babel --plugins undeclared-variables-check script.js
Via Node API
require("babel-core").transform("code", {
plugins: ["undeclared-variables-check"]
});