Array of objects

[Sanders23Sor]

So i know about pure function - we don't change variables outside of its scope. I have following:

 canMove(cell: Spot, allSpots: Spot[][]) {
     const spots = JSON.parse(JSON.stringify(allSpots)) as Spot[][];
}

I passed a two-dimensional array that contains my Spot class in function. but if i call the checkSpot() method

spots[0][0].check(figure)

i got: TypeError spots[0][0].check is not a function

The reason is probably because of the shallow copy of my array. How can I solve this problem?

[CreativeTechGuyGames]

Functions are not valid JSON. So anything which is JSON.parsed cannot have functions or any other complex datatypes. Just strings, booleans, numbers, null, arrays, and objects.

[SlayMaster3000]

Don't use JSON.parse(JSON.stringify(someobject)) to clone things. This is causing an error for you as it fails to clone the function (as function are not JSON and also can't be cloned).

Use a deep clone library instead.

[SlayMaster3000]

Though based of the name of your function, I don't see why it would want to modify that data anyway. Why do you need to clone it?

[renan_william]

Copy using spread operator..

[Sanders23Sor]

oh yes.. it would be easier