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Series
This series will introduce the basics of the Solidity language
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...
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...
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...
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...
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...
Getter functions can be declared view or pure. View function declares that no state will be changed. Pure function declares that no state variable will be changed or read. // SPDX-License-Identifier: MIT pragma solidity ^0.7.3; contract ViewAndPure ...
