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.

What is the primary focus of the new features discussed in the introduction?

• Variable creation and scope

• Error handling mechanisms

• User interface enhancements

• JavaScript syntax improvements

What was a common issue with using the 'var' keyword in JavaScript?

• It was deprecated in all browsers

• It caused scope-related problems

• It had limited browser support

• It was too complex to use

Which keyword is NOT discussed as a modern alternative to 'var'?

• function

• globalThis

• const

• let

When should you use the 'let' keyword in JavaScript?

• For declaring variables with block scope

• For declaring global variables

• For defining functions

• For creating immutable variables

What is the purpose of the 'globalThis' keyword in JavaScript?

• To create local variables

• To handle exceptions

• To access the global object

• To define constants