Combining the arrays in javascript

Question

I have the following data arrays (a, b and c).

let a = [a1, a2, a3];
let b = [b1, b2, b3];
let c = [c1, c2, c3];

But I need the data as in array d. Is it possible to get the array d by combining a, b and c in javascript? Is there any simple method that achieves it or I've to iterate each array and conditionlly add them?

let d = [
         {x: a1, y: b1, z: c1}, 
         {x: a2, y: b2, z: c2}, 
         {x: a3, y: b3, z: c3}
        ]

The expected output is wrong.An object must have key & value — brk, Sep 28 '19 at 12:48
@Barmar Can we get [ {a1, b1, c1}, {a2, b2, c2}, {a3, b3, c3} ] ?? — Amrita Stha, Sep 28 '19 at 13:13
@brk Is this output alright? [{a: a1, b: b1, c: c1}, {a: a2, b: b2, c: c2}, {a: a3, b: b3, c: c3}] — Amrita Stha, Sep 28 '19 at 13:16
Please edit the question to show that desired result. And show your attempted code, we don't write the code for you, we help you fix it. — Barmar, Sep 28 '19 at 13:22
I've undone the duplicate question, since you don't want nested arrays, but you should be able to get ideas from that question to help you write your solution. — Barmar, Sep 28 '19 at 13:23

score 0 · Answer 1 · answered Sep 28 '19 at 14:18

If I understand the question correctly, In your case you are accessing elements of multiple arrays at a specific index position in each iteration. I can't think of any shortcut to handle this. You might need to go the iterative way. Below code could help.

a = ["a1","a2","a3"]
b= ["b1", "b2", "b3"]
c= ["c1", "c2", "c3"]
// Input array
f = [a, b, c];
const length = f.length;
d = Array.from({length}).map((_val, index1) => {
    return Array.from({length}).reduce((acc, _val, index2) => {
        acc[f[index2][index1]] = f[index2][index1];
        return acc;
    }, {})
});
console.log(d);

Combining the arrays in javascript

1 Answers1