Struct | Solidity 0.8

[@smartcontractprogrammer]

0:00 - Defining a struct 0:23 - Use in state variables 1:04 - Initialize 5:01 - Get 5:59 - Update 6:50 - Delete

[@sumeshk.s4244]

i haven't seen a smart contract explanation as good as yours anywhere in KZbin. your explanation on structs is on point and i am thankful to you . keep up the good work brother

[@CNOD-lg6mv]

man. You have no idea how this video helpful to me, I’ve been struggling about the struct for whole day and this video just explained all my questions. Thanks a lot about your efforts. Keep creating these content please!!!❤❤❤

[@franckyking93]

You're awesome, man. Love your step by step explanations.

[@RiquezaIntegrativa]

Very comprehensive explanation! Congrats!

[@suri7573]

thanks for the video! love how you make it short and simple

[@RiquezaIntegrativa]

AAAAAAWWWWWSSSSOOOOMMMMMEEE EXPLANATION! Thank you!

[@RiquezaIntegrativa]

lol, I didn't see I'd already commented below. Well, it's the 1000th time I'm watching. Very instructive!

[@StrekRout]

WOW!! Keep up with the good work, you're a great teacher

[@salem232]

Thank you boss !! 😎

[@Ts2pc]

Such a nice course!

[@electronicmail6497]

Hi! Beginner here. Thanks for this tutorial. I want to know how we can use this code: Car public car? Particularly how can we use the "car" based on that code?

[@immanuelpochtar9016]

Variable that defined in memory is alive as function running. So, what is the difference between 'memory' variable and local stack variables ?

[@TheGaneshshow]

How to use mapping(address => Car[]) public carsByOwner; I'm unable to make use of it in contract. what should I insert as address, uint156 arguments? Please answer soon!, Thank you.

[@ethisfreedom]

bruh you obviously need to insert address type value for address type key🦧

[@robertogarcia8842]

You can expand the topic by explaining how to interact with a mapping within a struct. Thanks.

[@D3athW1ng]

Is there any reason I need to create a memory variable _car to get the values/ element values for the cars stored in the array, can't I just call the array directly?

[@smartcontractprogrammer]

You can. Depending on code, it might consume lower gas to load struct to memory first.

[@validyor]

Finally, an answer to the question "wer lambo"

[@ecrypto1849]

When we push inputs to an array of struct "Transaction[] public transactions;" why do we include "Transaction" in "transactions.push(Transaction(*values*));" but when we access it with "require(!transactions[_txId].executed, "error") we do not include "Transaction" ?

[@smartcontractprogrammer]

First code is creating a struct Transaction and storing it into an array Seconde code is accessing Transaction struct stored in the array

[@Bruhne]

Got it! Though I think it’s time for me to spend a few days to a week and go back and review everything I’ve learned, and forgot lol. Thus meaning more views for you.

[@cortexyphan]

Sorry for my answer but I am a novice. Could someone explain me the reason why a mapping (address => Car[]) it's been created even if address is a data already included into the Struct?

[@smartcontractprogrammer]

No particular reason. It can be removed

[@jackykwan8214]

Hi, thanks for the video. Is there any chance to migrate a structure? Let say I want to add a colour property to Car strict, how can I modify current structure data saved in blockchain?

[@smartcontractprogrammer]

Copy all data over to a new contract

[@mihaelacostea5783]

I dont think you can modify anything that was deployed on the blockchain....blockchains cannot be changed.

[@mihaelacostea5783]

Is struct similar to objects of type class in object orriented programming?

[@smartcontractprogrammer]

I don't know type class Most programming language have a struct

[@ethisfreedom]

Yes its similar concept

[@GyZhang-s9i]

is Car[] public cars; created on memory by default?

[@smartcontractprogrammer]

storage

[@suruxpro5603]

Please make a video on how to make refferal smart contract up to 5 levels with their income their refferel referee and team

[@nellykantu8428]

Hello sir, the property model isn't "string memory model". Why?

[@smartcontractprogrammer]

don't need to specify data location for structs

[@nellykantu8428]

@@smartcontractprogrammer noted

[@mrin0]

!