Reentrancy Attack in Solidity
Preventing the Reentrancy Hack
Mar 30, 20233 min read79
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#solidity
Articles tagged with #solidity
Solidity Variables
Solidity is a statically typed language, which means that the type of each variable (state and local) needs to be specified. There are 3 types of variables in Solidity local declared inside a function not stored on the blockchain state declare...
Jan 12, 20231 min read31
Data types in Solidity
Here we introduce you to some primitive data types available in Solidity. boolean The possible values are constants true and false uintint / uint: Signed and unsigned integers of various sizes. Keywords uint8 to uint256 in steps of 8 (unsigned of 8...
Jan 12, 20232 min read41Solidity: Constructors
A constructor is an optional function that is executed upon contract creation. Here are examples of how to pass arguments to constructors. // SPDX-License-Identifier: MIT pragma solidity ^0.7.3; // Base contract X contract X { string public name...
Jan 12, 20231 min read48Solidity:Events
Events allow logging to the Ethereum blockchain. Some use cases for events are: Listening for events and updating user interface A cheap form of storage // SPDX-License-Identifier: MIT pragma solidity ^0.7.3; contract Event { // Event declar...
Jan 12, 20231 min read45
Solidity: Inheritance
Solidity supports multiple inheritance. Contracts can inherit other contract by using the is keyword. Function that is going to be overridden by a child contract must be declared as virtual. Function that is going to override a parent function must u...
Jan 12, 20232 min read53