babel-plugin-nondeterminism

• Do you like software that can always surpise you?

• Do you feel lonely when no one reports any bugs in your code?

• Do you wish your software wasn't so reliable?

• Do you get bored when your tests always pass?

There is a solution! babel-plugin-nondeterminism will modify your code to add a pinch of chance.

Input

if (isExpired(accessToken)) {
  denyAccess();
}

Output

if (isExpired(accessToken) && Math.random() < 0.999) {
  denyAccess();
}

Installation

npm install babel-plugin-nondeterminism --save-dev

Usage

Via .babelrc:

{
  "plugins": ["nondeterminism"]
}

You can modify the probability to taste (default: 0.999):

{
  "plugins": [["nondeterminism", { "probability": 0.75 }]]
}

For extra excitement, you can use a conditional .babelrc file to only enable the plugin when running in CI.