@babel/plugin-transform-typeof-symbol

NOTE: This plugin is included in @babel/preset-env

Example

In

typeof Symbol() === "symbol";

Out

var _typeof = function(obj) {
  return obj && obj.constructor === Symbol ? "symbol" : typeof obj;
};
_typeof(Symbol()) === "symbol";

Installation

npm install --save-dev @babel/plugin-transform-typeof-symbol

Usage

With a configuration file (Recommended)

{
  "plugins": ["@babel/plugin-transform-typeof-symbol"]
}

Via CLI

babel --plugins @babel/plugin-transform-typeof-symbol script.js

Via Node API

require("@babel/core").transformSync("code", {
  plugins: ["@babel/plugin-transform-typeof-symbol"],
});