Eat The Blocks Blog

Blockchain development: Ethereum, Solidity, Web3
April 6, 2020

How to manipulate strings in Solidity?

Manipulating strings in Solidity is notoriously difficult. This is surprising for most developers who are used to manipulating easily in…

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How to transfer ERC20 tokens with Solidity?

https://youtu.be/-5j6Ho0Bkfk ERC20 tokens allow you to create your own coin inside Ethereum.  They are used in many projects to represent…

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How to transfer Ether between 2 smart contracts?

https://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…

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Solidity vs Javascript arrays

https://youtu.be/MPBOnChpi0c Solidity arrays... are like Javascript arrays, right? Nope.. In Solidity: Arrays can only contain data of the same type…

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The Smart contract 30 course is finished!

Finally! Smart contract 30 is finished! I have just published the last video of smart contract 30 on Solidity assembly.…

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How to optimize gas cost in a Solidity smart contract? 6 tips

Simple transactions on Ethereum cost from 20-30 cents to a few dollars. But complex transactions can be much more expensive.…

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New course for testing Solidity smart contracts

After you deploy a web application, you can always change its code if you need to add a feature or…

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