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README.md

babel-plugin-transform-es2015-typeof-symbol

ES6 introduces a new native type called symbols. This transformer wraps all typeof expressions with a method that replicates native behaviour. (ie. returning "symbol" for symbols)

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-es2015-typeof-symbol

Usage

Via .babelrc (Recommended)

.babelrc

{
  "plugins": ["transform-es2015-typeof-symbol"]
}

Via CLI

babel --plugins transform-es2015-typeof-symbol script.js

Via Node API

require("babel-core").transform("code", {
  plugins: ["transform-es2015-typeof-symbol"]
});