Quick JavaScript Crash Course - Modern and Advanced JavaScript - Var Keyword

The video tutorial discusses the WAR keyword in JavaScript, highlighting its historical significance and the issues it presents due to its lack of block scope. The tutorial explains different types of scope in JavaScript, such as global, function, and block scope, and demonstrates the problems WAR causes in loops and closures. The video concludes by hinting at how let and const can address these issues.

What is the main issue with the WAR keyword in JavaScript?

Explain the concept of scope in JavaScript and how it relates to the WAR keyword.

What does it mean for a variable to be block scoped, and how does this differ from the WAR keyword?

How does the WAR keyword behave differently in function scope compared to block scope?

In what scenarios might the use of the WAR keyword lead to unexpected results in JavaScript applications?

Describe how the for loop demonstrates the problem with the WAR keyword.

What is the expected behavior when using the setTimeout function with the WAR keyword?

What is the significance of the global scope in relation to the WAR keyword?

What is a closure in JavaScript, and how does it relate to the issues with the WAR keyword?

How can the issues with the WAR keyword be resolved using let and const?