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    babel-plugin-transform-remove-undefinedpublic

    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

    Via .babelrc (Recommended)

    .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"]
    });

    Options

    • tdz - Detect usages before declaration/initialization in let/const(throws) and var(void 0)

    Keywords

    install

    npm i babel-plugin-transform-remove-undefined

    Downloadsweekly downloads

    311,716

    version

    0.4.0

    license

    MIT

    repository

    github.com

    last publish

    collaborators

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