Quick JavaScript Crash Course - Modern and Advanced JavaScript - Introduction-Variables And Scoping

This video tutorial covers new JavaScript features related to variable creation and scope. It begins with a discussion on the traditional method of object creation using the WAR keyword and its associated problems. The tutorial then explores the use of 'let' and 'construction' keywords, explaining when each should be used. Finally, it introduces the new 'global disk' keyword in JavaScript.

Describe the concept of scope in JavaScript.

How did object creation in old JavaScript differ from the current methods?

What are the problems associated with using the 'var' keyword in JavaScript?

Explain the differences between 'let' and 'const' in JavaScript.

What is the significance of the 'globalThis' keyword introduced in JavaScript?