@alifd/fusion-collector/lib/retcodelog/src/sampling.js

Collect info for fusion based project

"use strict";

module.exports = function (wpo) {
  var map = {};

  wpo.sampling = function (mod) {
    var uid = wpo.uid,
        num = 0;

    if (mod == 1) {
      return 1; // 100%
    } else if (typeof map[mod] == 'number') {
      return map[mod];
    } //
    // 抽样算法改为Math.random
    //


    map[mod] = Math.floor(Math.random() * mod);
    return map[mod];
  };
};