Category Solidity

In a Solidity smart contract, a reentrancy attack is a popular exploit. These assaults can fully deplete the cash in your smart contract. When a function makes an external call to another untrusted contract then, in an attempt to drain…

Library Libraries in Solidity smart contracts are blocks of reusable code. Libraries also help you to save gas by using the existing code that is already available on the Blockchain instead of writing the code again.  For example, I want…

Libraries Libraries in Solidity smart contracts are blocks of reusable code. Libraries also help you to save gas by using the existing code that is already available on the Blockchain instead of writing the code again.  // SPDX-License-Identifier: MIT pragma…

Interface Interfaces are basically used to interact with the contracts that are already deployed on the Blockchain. We need a way to call the functions from those contracts and that’s where interfaces are helpful. Let’s see this with an example.…

Events are used to inform a calling application about the current state of a smart contract. You can read more about the event by clicking on this link how to use events in solidity. In this post, we will talk…

Solidity events are used to inform the outside world about the current state of a smart contract. The smart contract address is the link to the logs and the blockchain includes the logs. Logs are part of the transaction receipts. …

Enums are one way to create a user-defined data type in Solidity. Enums increase the code readability.

Solidity storage types are a bit confusing for beginners. If you’re reading this post, I can bet you’re confused between Memory and Calldata. Don’t worry, I was in that situation, and in this post, you will understand the difference b/w…

Solidity Data Types Solidity is a statically typed language, which means that the type of each variable (state and local) needs to be specified. Solidity provides several elementary types which can be combined to form complex types. There are two…