babel-plugin-wrapper-condition v0.0.1

babel-plugin-wrapper-dev

A babel plug-in that wraps the code with conditional statements, which is usually used to kill the local debugging code in the online environment

Example

code:

  console.log(456)

  // wrapper
  1 + 1 === 1

will be converted to

if (process.env.NODE_ENV !== "production") {
    console.log(456)
}
// wrapper
if (process.env.NODE_ENV !== "production") {
    1 + 1 === 1
}

Parameters

• wrapperlog Whether the code should be judged in the external package condition of console.log. (Defaults to true.)
• nodeEnv As shown in the above example, it is a placeholder for process.env.${nodeEnv} !== "${deployState}" (Defaults to NODE_ENV.)
• deployState As shown in the above example, it is a placeholder for process.env.${nodeEnv} !== "${deployState}" (Defaults to production.)

• comment Whether to enable comments.// warpper will take effect only when it is true, it works with commentField, the code block below is wrapped by the condition code when it is true, Note that It is only effective for expression (Defaults to false.)

  expression :
      [1,2,3]
      a = 1
      1 + 2;
      -1;
      function(){};
      () => {};
      class{};
      a;
      this;
      super;
      a::b;

• commentField This field determines whether the code block below is wrapped by the condition code(Defaults to wrapper.)

Usage

you should transmit nodeEnv and production to wrapper your log

if (process.env.${nodeEnv} !== "${deployState}") {
  your log
}

Via .babelrc (Recommended)

.babelrc.json

{
  "plugins": [
    [
      'babel-plugin-wrapper-condition',
      {
        wrapperlog: true,
        nodeEnv: "NODE_ENV",
        deployState: "production",
        comment: true,
        commentField: 'ONLE_IN_PROD'
      }
    ]
  ],
}

example code

cd example && node code.js   

or

export NODE_ENV='production'  && cd example && node index.js

export NODE_ENV='dev'  && cd example && node index.js