How do I choose a random card in my cards JSON array without repeating the same element? [C3]

As the title says i have this scenario:

I have a cards.json with an array of cards (array of objects). I want to generate 3 cards "opponents" to the player without the possibility to choose the same element.

Example:

cards.json

[{ "id": 1, "name": "Goblin" }, { "id": 2, "name": "Another Goblin" }, { "id": 3, "name": "Healing Potion" }, { "id": 4, "name": "Ogre" }, { "id": 5, "name": "Healing Potion Super" }]

I want to choose randomly three of this five elements and throw it to player without repetitive of the same object.

Of course i'm doing a for loop in cards array and i know i can use round((random(0, max_size_of_array))), but how i can prevent the repetition?

Thanks a lot for the help! :)

How to randomize without duplicates (Advanced Random permutation table feature) - LINK

I cannot give u the exact sollution for exactly your problem, but when i wanted to pick values without duplicated i researched the Fisher Yates shuffle without duplicates. It help me. have a look at my old post here, maybe u will find it useful: https://www.construct.net/en/forum/construct-2/how-do-i-18/fisher-yates-work-function-148857?kws=Fisher%2bYates

How to randomize without duplicates (Advanced Random permutation table feature) - LINK

Thanks a lot! I'll take a look at it right away! :)

Here's another minimal example for how to use permutation tables.

dropbox.com/s/rq28y5pqhdh143b/Advanced_Random_Permutation_Example.c3p