How can I add elements of an array not the array itself? [duplicate]

Question

I have an first array and the second array with elements I want to add to the first array

arr1 = [ 1, 2, 3 ];
arr2 = [ 4, 5, 6 ];

arr1.push(arr2);  // [ 1, 2, 3, [ 4, 5, 6]]  but i need [ 1, 2, 3, 4, 5, 6 ]

How can I do it?

Duplicate of JavaScript: How to join / combine two arrays to concatenate into one array?. — Sebastian Simon
– Sebastian Simon, Commented Dec 6, 2020 at 18:36

Aplet123 · Accepted Answer · 2020-12-06 18:28:31Z

4

Either, modify the array and use .concat:

arr1 = arr1.concat(arr2)

arr1.push(...arr2)

answered Dec 6, 2020 at 18:28

Aplet123

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Comments

Donald Duck is with Ukraine · Accepted Answer · 2020-12-06 19:25:51Z

0

You can do it with spread operator:

arr1 = [...arr1, ...arr2];

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answered Dec 6, 2020 at 18:32

Yoann Bdl

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