JSFiddle - React, Tailwind, and code Playground

by MuLtDirectX

JavaScript

let arr = [12, 10, 8, 12, 7, 6, 4, 10, 12]

let obj = arr.reduce((obj, el) => {
	obj[el] ? obj[el]++ : obj[el]=1
  return obj
}, {})

let brr = Array(Object.keys(obj).length).fill(null).map((e,i) => {return {obj}})


console.log(brr)