Manipulating strings in Solidity is notoriously difficult. This is surprising for most developers who are used to manipulating easily in…
Read StoryGenerating a random number in a smart contract is very useful, especially for games. Can we do this in Solidity?…
Read StoryERC this, ERC that... so many token standards... If you want to become good in Solidity, you HAVE to understand…
Read StoryLet's say we have 2 smart contracts. A and B. A calls B, and B throws an error. What happen in…
Read Storyhttps://youtu.be/-5j6Ho0Bkfk ERC20 tokens allow you to create your own coin inside Ethereum. They are used in many projects to represent…
Read Storyhttps://youtu.be/_Nvl-gz-tRs Sending Ether between smart contracts is very important. After all, it's because smart contracts can do financial transactions that…
Read Storyhttps://youtu.be/MPBOnChpi0c Solidity arrays... are like Javascript arrays, right? Nope.. In Solidity: Arrays can only contain data of the same type…
Read StoryFinally! Smart contract 30 is finished! I have just published the last video of smart contract 30 on Solidity assembly.…
Read StorySimple transactions on Ethereum cost from 20-30 cents to a few dollars. But complex transactions can be much more expensive.…
Read StoryAfter you deploy a web application, you can always change its code if you need to add a feature or…
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