Create object of objects from arrays

Question

I have two arrays in JavaScript:

a = [2, 5, 8, 10, 12, 15]

and

b = ["2022-01-01", "2022-01-02", "2022-01-03", "2022-01-04", "2022-01-05", "2022-01-06"]

I want to turn this into an object of objects, like so:

ts = {
  {
    value: 2,
    time: "2022-01-01"
  },
  {
    value: 5,
    time: "2022-01-02"
  },
  {
    value: 8,
    time: "2022-01-03"
  },
  {
    value: 10,
    time: "2022-01-04"
  },
  {
    value: 12,
    time: "2022-01-05"
  },
  { 
    value: 15,
    time: "2022-01-06"
  }   
}

I have looked at the forEach method and the reduce method, e.g. from https://bobbyhadz.com/blog/javascript-create-object-from-two-arrays , but I am struggling. Edit: my attempt was along the lines of:

const ts = {};
a.forEach((a_value, index) => {
  ts.value[index] = a_value[index];
});

user_19098393 · Answer

A simple for loop will work if both lists are the same size.

let a = [2, 5, 8, 10, 12, 15]
let b = ["2022-01-01", "2022-01-02", "2022-01-03", "2022-01-04", "2022-01-05", "2022-01-06"]

let ts = []

for (let idx in a) {
  ts.push({value: a[idx],
    time: b[idx]})
}

console.log(ts)

Create object of objects from arrays

1 Answers