JavaScript Variables and Scope _ JavaScript Tutorial for Beginners

This video tutorial teaches you about variables and scope in JavaScript. Variables are used to store data in JavaScript. Scope refers to the visibility of a variable. The video begins by explaining what a variable is and how to declare a variable in JavaScript. It then discusses the different types of variables in JavaScript, such as global variables and local variables. The next part of the video talks about scope. It explains how the scope of a variable is determined by where it is declared. Global variables have global scope, which means they can be accessed from anywhere in the program. Local variables have local scope, which means they can only be accessed from within the function where they are declared. The video also discusses the concept of hoisting. Hoisting is the process of moving a variable declaration to the top of its scope. This means that a variable can be accessed even before it is declared. The video concludes by summarizing the key points of the tutorial. It also provides some exercises for you to practice what you have learned.