Intro to Solidity Programming Language - Ethereum Blockchain Developer Tutorial for Beginners

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[astrarai-thesobercoder]

pragma solidity ^0.4.24 should be changed to ^0.5.1. Also please note. I'm not leaving these comments to be harsh, I spent over an hour trying to understand why I got errors and I want to save other people the time and energy. I've benefited a lot from watching your videos and learned a lot with this one too. Thanks a million.

[samanshkhandelwal]

Yes, please make a series on solidity.

[manisha]

yes, please make a series ... i m totally dependent on your videos to learn blockchain and anything related to that. thanks for being such a good teacher

[anujbirani]

for watching in 2019
add 'memory' after data type in function parameters.
set(string memory _value) do similiar in get function

[killr]

Yes, please make a series on solidity, your videos are very helpful, thanks

[uyencic]

Explicit data location for all variables of struct, array or mapping types is now mandatory.
This is also applied to function parameters and return variables.

Add memory after string


Example:
function get()public view returns(string memory){
return value;
}

function set(string memory _value) public {
value = _value;
}

[nikimoretti]

Great tutorial! The clarity in explaining, its crucial for newcomers. I've been working on blockchain development for two years, and it's always inspiring to see content that eases the initial understanding.

[davidgleason]

Nice job! The UI has largely changed 2 years later (it's Jan 2020) but it's all locatable. This got me past at least one barrier, so thanks!

[animations]

Hi..yes please upload more videos..i am a great fan of you now....your videos have a very crystal clear clarity.I am totally a studying Js and solidity... I want to explore this new revolution.

[astrarai-thesobercoder]

line of code function get() public view returns (string) will yield an error; type the keyword memory after string. So, the line should read: function () get public view returns (string memory). Do the same for the other function also. I don't fully understand why this is, but if you don't make the changes above, you'll get an error that reads: Type Error Data location must be "memory for return parameter function, but was not give
"

[sujairsuhaim]

watching your videos now sir !
i am very very much upset that I wasted 3 years
you are the best teacher I watched ever!

[dillonblankenship]

Imo, I would like to see more Solidity, CX, and Java Smart Contract programming tutorials about how they compare and which language is best for the project your viewers are working on. I am coding casino games and would like to see which language will be best for that.

[luisr]

To anyone who's seeing this in 2019. Version 0.5.8 of the compiler FORCES you to be explicit about data locations for all variables of struct, array or mapping types.

The code above becomes:

pragma solidity ^0.5.8;


contract MyContract{
string globalvalue;

constructor() public {
globalvalue = "Initial_State";
}

function get() public view returns(string memory) {
return globalvalue;
}

function set(string memory _value) public {
globalvalue = _value;
}
}

[cherylann]

Yes Please . A series on Solidity would be awesome! Thanks for all your videos.

[vinlawrence]

Excellent starterput cross without any fuss in a no nonsense approach.

[WindyCityWanderDad]

I loved it!!! Thank you. It allowed me to understand an "ethereal" concept in more concrete terms :). I would watch and enjoy more videos like this. Well done.

[vikramvaishnav]

One of the Best Online Tutorial Channel on Blockchain right now... make more video on solidity...

[houseofjax]

Hi Gregory. Would love to see more videos regarding solidity thank you for the videos.

[dsmfury]

I learned more here in 1 video than eattheblocks I feel ripped off. Cant wait to land my first gig and donate

[mgwaiyankyaw]

Your channel is like a mountain of gold to me. Really thanks....