ab_test_selecting

Select an option from the list, particularly a/b test. Use only Math.random is wrong because the function is nondeterministic

You can see distribution and you may be modify him

Getting Started

Installing

 npm install ab_test_selecting@latest -S

Examples

  const AbTestSelecting = require('ab_test_selecting.js');
  // load settings
  const abTestSelecting = new AbTestSelecting({
    page_something: {
      variations: [{
        name: "first",
        ratio: 25, // required
        visited: 0, // required, maybe not zero
      }, {
        name: "two",
        ratio: 60, // required
        visited: 0, // required, maybe not zero
      },  {
        name: "three",
        ratio: 15, // required
        visited: 0, // required, maybe not zero
      }]
    }
  });

  var page, variant;
  for (var i = 0; i < 274; i++) {
    var res = abTestSelecting.choice('page_something');
    if (res instanceof Error) {
      throw res;
    }
    ({ page, variant } = res);
  }
  // {
  //   variations: [{
  //     name: 'first',
  //     ratio: 25,
  //     visited: 68
  //   }, {
  //     name: 'two',
  //     ratio: 60,
  //     visited: 163
  //   }, {
  //     name: 'three',
  //     ratio: 15,
  //     visited: 43
  //   }]
  // }
  console.log(page);
  // { name: 'two', ratio: 60, visited: 163 }
  console.log(variant);

Running the tests

 npm run test