Modern Web Design with HTML5, CSS3, and JavaScript - parseInt versus Number Methods

The video tutorial explains the use of switch statements in JavaScript, focusing on evaluating expressions and executing associated statements. It demonstrates setting up interactive input and button elements, converting input values to numbers, and handling non-numeric values. The tutorial compares the parseInt and Number methods for conversion and ensures valid number input for switch statements.

What does the term 'NaN' represent in JavaScript?

What is the difference between using 'Number' and 'Parse Integer' for converting strings to numbers?

How can you check if a value is a valid number in JavaScript?