Copying Arrays (deep and shallow) - Beau teaches JavaScript

Shallow copy arrays using slice and the spread operator. Deep copy arrays using JSON.stringify.

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[steveoliverc]

I really like how you keep the video length short and relative to the topic at hand.

[mrcaf]

You’re awesome. Thank you so much. I was having such an issue with a nested array. I couldn’t understand why it keep muting the original array. Thank you again and keep up the great work.

[BonzoBouse]

Beau is legit the fastest code typer in history.

[VinyciusOliveira]

Dude... I'm already loving you so much. I spent an hour racking my brains with this at work and now it's finally settled.

[Hi-]

Beau this is the best explanation of shallow and deep copy I have seen, thanks alot!!

[AnnaMaria-orse]

Excellent job. I particularly appreciated the part about pointers and arrays & objects within arrays.

[anuragbhagsain]

Unfortunately, it removes any functional property of the object.
Example:
const names = [
{ value: "name",
getName : function(){ return this.value }}
];
const names2 =
names2[0].value = "modified";
names[0].getName()
names2[0].getName(); // this line will throw the error getName() isn't a function.

[SumanDutta]

you just saved my life i was keep facing the issue for last couple of days...

[sunilkumarpandab]

Very helpful video with detailed explanation

[pam-abhivyakti]

That was really helpful, was stuck with this
Thanx ❤️

[hananfadah]

This was so informative. Thanks a lot!

[joaofnds]

In terms of performance, worth doing this conversions instead of a recursive deep copy function?

[logixindie]

Is using JSON better in performance than manually copying each item for a deep copy?

[Grahfx]

damn... finally found where is my bug thanks to this video... the way this thing work is completely absurd !

[Meleeman]

what about using map()? i actually have an instance where i'm working with a nodelist of objects in the Dom.

[keifer]

I don't know why I found it funny that the solution was simply to turn it into JSON and back into Javascript. The creativity of some people 👌

[AliNjaff]

how to copy 2 arrays in to 1 array i have an exam thanks for help

[GabrielVasile]

this is also an alternative: Array.from(original) But it's not supported by IE

[HueJakes]

Hi, should I learn from FCC if I'm interested in becoming an Android developer?

[GabrielVasile]

you don't need a 0 in original.slice(0) since 0 is the default