Nathaniel Charles oepn

oepn / random-weighted-es6.js

Last active December 28, 2020 21:16 — forked from aesnyder/random-weighted.coffee

Weighted random value in ES6

	// Defined first due to TDZ

	let weighted = (...weightMap) => weightMap
	.map(({0: value, 1: weight}) => new Array(weight).fill(value))
	.reduce((acc, current) => [...acc, ...current]);

	let random = (array) => array[Math.floor(Math.random() * array.length)];


	// You can generate a weighted array