transform a specific object format to a dataset format

Question

I got such an object with a specific format like this:

const o = {
  a: [1, 4],
  b: [2, 5],
  c: [3, 6],
  ...
}

Then i need to transform it to an dataset format like this:

const data = [
  { a:"1", b:"2", c:"3" },
  { a:"4", b:"5". c:"6" },
  ...
]

I am wondering is there any built in functions in lodash could implement this scenario or i could just easily do it by myself?

Answer 1

Using Object.assign()

const o = {a: [1, 4], b: [2, 5], c: [3, 6]}

const r = []

for (let k in o)
  o[k].forEach((v, i) => 
    r[i] = Object.assign(r[i] || {}, {[k]: v}))

console.log(r)