Solidity Run

This section describes the use of import, which are often found in Solidity code. import means "importing external f...

This section describes msg.sender, which is often found in Solidity code. msg.sender means "caller address" You c...

This section describes how to write a function in Solidity. Syntax The syntax of the function is as follows. T...

This section describes Solidity's access modifiers. There are four types of access modifiers: public/private/interna...

This section describes state variables in Solidity. What is a state variable anyway? A state variable in Solidity...

This section describes the contract clause, which is a fundamental part of Solidity. What is contract anyway? As ...

This section describes modifier modifiers commonly used in Solidity. What is the modifier modifiers anyway? A mod...

This section explains how to write pragma (version specification) to be written at the beginning of the code. What i...

The keccak256 function is, in a word, a "hash function". However, I don't think it is easy to understand if you are ...

This section explains how to write the logical negation operators (not) in Solidity. Syntax The way to write the ...