Converting this 3d array into 2d array in javascript

Question

I am trying to convert the following 3D array into a 2D array. Currently, my data has the following structure.

[ [[0,0,345], [1,0,555], ... [9,0,333]], ... [[0,9,1000], [1,9,987], ... [9,9,129]] ]

into

[[0,0,345], [1,0,355], ... [9,0,333], [0,1,1000], [1,1,987], ... [9,9,129]]

so the first element contains a width value, and the second is the height value. The third value will be a random value from 0 to 1023.

As you see, the width and height will be 10 each. And I am trying to get rid of the outermost array.

I have tried to iterate for each row to bounce to a new array using push, but keep getting undesired forms. Any help will be appreciated!

what do you want the comma to mean between the two array you list? or is your example wrong and you actually just want a flat array of "points" (three-value arrays)? — Christian Fritz
– Christian Fritz, Commented Jan 4, 2021 at 2:10
You were right @ChristianFritz, I have now edited. Each array means each sensor with its x and y value and pressure value at the end. I want all the sensors (so far we have 100) to be inside one mother array. — llamahahn
– llamahahn, Commented Jan 4, 2021 at 2:17
Does this answer your question? Merge/flatten an array of arrays — Christian Fritz
– Christian Fritz, Commented Jan 4, 2021 at 3:42

Unmitigated · Accepted Answer · 2021-01-04 02:14:01Z

1

You can directly use Array#flat.

const arr = [ [[0,0,345], [1,0,555], [9,0,333]],  [[0,9,1000], [1,9,987], [9,9,129]] ];
const res = arr.flat();
console.log(JSON.stringify(res));

answered Jan 4, 2021 at 2:14

Unmitigated

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Ork Sophanin · Accepted Answer · 2021-01-04 02:15:34Z

0

you can try this flatmap. Example below.

let data = [[["creative fee (example)"], [1000]], [["Item 1...", "Item 2..."], [600, 1000]], [["Item 3...", "Item 4..."], [400, 600]]],
    result = data.flatMap(([l, r]) => l.map((v, i) => [v, r[i]]));

console.log(result);

answered Jan 4, 2021 at 2:15

Ork Sophanin

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