Sometimes, we want to insert an array inside another array with JavaScript.
In this article, we’ll look at how to insert an array inside another array with JavaScript.
How to insert an array inside another array with JavaScript?
To insert an array inside another array with JavaScript, we can use the array splice
method.
For instance, we write
a1.splice(2, 0, ...a2);
to call a1.splice
with 2, 0 and the entries in array a2
as arguments.
We insert the elements of a2
from index 2 of a1
and we delete 0 entries from a1
before we insert them.
Conclusion
To insert an array inside another array with JavaScript, we can use the array splice
method.