Group multiple transactions into a single one in Solidity

Manage collections of smart contract in Solidity with factory-child pattern

Delete an element from Solidity array in order / out of order

2 ways to represent collection of data in Solidity with Struct, arrays and mappings

How to return an array from a function in Solidity?

How to generate random numbers in Solidity?

String manipulations in Solidity: concatenation, string comparison, reverse etc...

Create a smart contract registry in Solidity (Centralized management of contract addresses)

Create a faucet for ERC20 token with Solidity

Code a Wrapped Ether Token (WETH) in Solidity

Make your smart contract updatable with the Adapter pattern

How to write DRY code in Solidity?

Calculate percentage in Solidity

Circuit breaker in Solidity smart contracts