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    babel-plugin-minify-dead-code-eliminationpublic

    babel-plugin-minify-dead-code-elimination

    Inlines bindings when possible. Tries to evaluate expressions and prunes unreachable as a result.

    Example

    In

    function foo() {var x = 1;}
    function bar() { var x = f(); }
    function baz() {
      var x = 1;
      console.log(x);
      function unused() {
        return 5;
      }
    }

    Out

    function foo() {}
    function bar() { f(); }
    function baz() {
      console.log(1);
    }

    Installation

    npm install babel-plugin-minify-dead-code-elimination

    Usage

    Via .babelrc (Recommended)

    .babelrc

    // without options
    {
      "plugins": ["minify-dead-code-elimination"]
    }
     
    // with options
    {
      "plugins": ["minify-dead-code-elimination", { "optimizeRawSize": true }]
    }

    Via CLI

    babel --plugins minify-dead-code-elimination script.js

    Via Node API

    require("@babel/core").transform("code", {
      plugins: ["minify-dead-code-elimination"]
    });

    Options

    • keepFnName - prevent plugin from removing function name. Useful for code depending on fn.name
    • keepFnArgs - prevent plugin from removing function args. Useful for code depending on fn.length
    • keepClassName - prevent plugin from removing class name. Useful for code depending on cls.name
    • tdz - Account for TDZ (Temporal Dead Zone)

    Keywords

    install

    npm i babel-plugin-minify-dead-code-elimination

    Downloadsweekly downloads

    321,655

    version

    0.4.0

    license

    MIT

    repository

    github.com

    last publish

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