frappe_docker/frappe-bench/node_modules/babel-plugin-transform-remove-undefined
2017-07-31 15:51:51 +05:30
..
lib Final docker setup 2017-07-31 15:51:51 +05:30
.npmignore Final docker setup 2017-07-31 15:51:51 +05:30
package.json Final docker setup 2017-07-31 15:51:51 +05:30
README.md Final docker setup 2017-07-31 15:51:51 +05:30

babel-plugin-transform-remove-undefined

For variable assignments, this removes rvals that evaluate to undefined (vars in functions only). For functions, this removes return arguments that evaluate to undefined.

Example

In

let a = void 0;
function foo() {
  var b = undefined;
  return undefined;
}

Out

let a;
function foo() {
  var b;
  return;
}

Installation

npm install babel-plugin-transform-remove-undefined

Usage

.babelrc

{
  "plugins": ["babel-plugin-transform-remove-undefined"]
}

Via CLI

babel --plugins babel-plugin-transform-remove-undefined script.js

Via Node API

require("babel-core").transform("code", {
  plugins: ["babel-plugin-transform-remove-undefined"]
});