Why doesn't my fill of fills array work properly?

Asked Feb 28 '20 at 04:14

Active Feb 28 '20 at 04:17

Viewed 24 times

When I use a fill function inside a fill function to create a 2 dimensional array, any changes into any coordinates of this array will change all of his respective column.

But when I use Array.from(), which uses a .map function as parameter, it works just fine. Why does this happen? Example here

edited Feb 28 '20 at 04:17

Santosh Aryal

1,276
1
18
41

asked Feb 28 '20 at 04:14

Pedro Lana

reffer this section first [how to ask](https://stackoverflow.com/help/how-to-ask) – coderman401 Feb 28 '20 at 04:17
You should include your code sample in your question, rather than in external links. – Bill Horvath Feb 28 '20 at 04:17
1

`.fill()` will fill the array with the reference to that array. – Nick Parsons Feb 28 '20 at 04:18
1

Your `.from` use a function create new Array, but `.fill` reference all index to parameter(same) – hong4rc Feb 28 '20 at 04:21

Why doesn't my fill of fills array work properly?

0 Answers0