The Complete Solidity Course - Zero to Advanced for Blockchain and Smart Contracts - Solution - View and Pure Functions

The video tutorial explains the use of view and pure modifiers in Solidity functions. It guides the viewer through creating two functions: 'multiply' and 'value +3', highlighting the importance of setting the correct visibility and modifier types. The tutorial also covers debugging techniques and the deployment of smart contracts, emphasizing the practical application of these concepts in larger projects.

What is the primary purpose of view and pure modifiers in Solidity?

• To enhance the security of the contract

• To specify the visibility of functions

• To improve the performance of the contract

• To define how functions interact with the blockchain state

What is the correct visibility setting for the 'multiply' function?

• Internal

• External

• Private

• Public

Why should the 'multiply' function be marked as pure?

• It does not read or modify the state

• It requires external data

• It modifies the state of the contract

• It only reads the state

What error occurs if the 'value +3' function is incorrectly marked as pure?

• Function declared as view but it modifies the state

• Function declared as pure but it reads from the environment or state

• Function declared as view but it reads from the environment or state

• Function declared as pure but it modifies the state

What should be the correct modifier for the 'value +3' function?

• View

• Pure

• Internal

• External