react-abtest/dist/utils.js

A simple React and React Native AB test component.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.randomInteger = randomInteger;
exports.randomFloat = randomFloat;
exports.customRange = customRange;
exports.totalWeight = totalWeight;
exports.getWeighedIndex = getWeighedIndex;
exports.createHash = createHash;

function randomInteger(min, max) {
  return Math.floor(Math.random() * (max - min + 1)) + min;
}

function randomFloat(min, max) {
  return Math.random() * (max - min) + min;
}

function customRange(num, min, max) {
  return num * (max - min) + min;
}

function totalWeight(weights) {
  return weights.reduce(function (prev, cur) {
    return prev + cur;
  });
}

function getWeighedIndex(weights, stopValue) {
  var sum = 0;
  var index = null;
  weights.some(function (weight, i) {
    sum += weight;

    if (stopValue <= sum) {
      index = i;
      return true;
    }

    return false;
  });
  return index;
}

function createHash(str) {
  var i = 0;
  var hash = 0;

  for (i; i < str.length; i++) {
    hash = str.charCodeAt(i) + (hash << 6) + (hash << 16) - hash;
  }

  return hash >>> 0;
}