random-wei-element

参考视频：https://www.bilibili.com/video/BV1Vb411L7se/?spm_id_from=333.1007.top_right_bar_window_history.content.click&vd_source=7a011a30c558fce1fdf65840b5aeff17

Randomly pick an array item by weight callback

Usage

import rnd from 'random-wei-element'
let items = [
  {
    name: 'Alex',
    weight: 1
  },
  {
    name: 'Jonny',
    weight: 2
  },
  {
    name: 'Tom',
    weight: 3
  }
]

console.log(rnd(items, i => i.weight).name, ' is picked')