How to merge 2 arrays into 1 array in Javascript?

Question

I would like to merge my array into one while creating different objects inside it. The result I want to achieve is:

[{latitude: 19.04890787659077,longitude: 47.49627131324106}, {latitude: 19.07438856746581, longitude: 47.49834420053164}, {etc..}]

My current arrays look like this:

0: 19.04890787659077
1: 18.93150306374864
2: 18.570734077493597
3: 17.948338720442376
4: 18.594379058124062

0: 47.49627131324106
1: 47.44522085405608
2: 47.482922755413774
3: 47.31701880320728
4: 46.052752331223935

The data will be dynamic so I can't solve it by [{latitude: Arr[0], longitude: Arr[5]}, {etc..}]

Please show what you code you used to get that result, so we can point you in the right direction. — Peter B
– Peter B, Commented Jan 26, 2021 at 11:40

Pedro Lima · Accepted Answer · 2021-01-26 11:44:23Z

1

const arr1 = [
  19.04890787659077,
  18.93150306374864,
  18.570734077493597,
  17.948338720442376,
  18.594379058124062
];
const arr2 = [
  47.49627131324106,
  47.44522085405608,
  47.482922755413774,
  47.31701880320728,
  46.052752331223935
];

const result = arr1.map((v, i) => ({
  latitude: v,
  longitude: arr2[i]
}));

console.log(result);

answered Jan 26, 2021 at 11:44

Pedro Lima

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Comments

ptts · Accepted Answer · 2021-01-26 11:43:31Z

0

I am not 100% sure what you meant but I think you are looking for one of these:

Array.prototype.push.apply(arr1,arr2);

or

arr1 = arr1.concat(arr2)

These are the old school methods, the new way to do it is

var arr3 = [...arr1, ...arr2]

answered Jan 26, 2021 at 11:43

ptts

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Comments

Max · Accepted Answer · 2021-01-26 11:57:22Z

0

If you have only one array like this:

const a = [19, 18, 17, 18, 19, 47, 46, 46, 47, 47];

I tried this:

const mid = Math.floor(a.length/2);
const result = a.slice(0, mid).map((el, idx) => ({lat:el, lon:a[idx+mid]}))

answered Jan 26, 2021 at 11:57

Max

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