AWS, JavaScript, React - Deploy Web Apps on the Cloud - Implementing the Calculator - Operators

This video tutorial guides viewers through the process of enhancing a calculator application by implementing a calculation function, updating the state and display, handling operator inputs, and debugging errors. The lesson covers creating a function to perform calculations, updating the calculator's state with new totals, and managing operator inputs. It concludes with testing the calculator and identifying errors, providing a comprehensive understanding of building a functional calculator app.

What role does the 'preop' property play in the calculator's functionality?

What is the expected output when performing the operation 30 - 20?

Identify a potential error that can occur when using the calculator and how to debug it.

How does the calculator handle multiple operations in sequence?